Once(A special period tracker)
How much does Once(A special period tracker) cost?
Prices are current as of 2 Oct 2026.
1 one-time purchase from $0.99
In the United States, Once(A special period tracker) has 1 one-time purchase priced $0.99.
| Product | Price |
|---|---|
| Ad-Free Ticket (30days) | $0.99 |
See what Once(A special period tracker) costs in all 174 countries →
10+ alternatives to Once(A special period tracker)
| Once(A special period tracker) |   Bom Calendar - Period tracker |   Period Tracking Calendar |   iPeriod Lite Period Tracker |   Period Tracker: Monthly Cycles |   Period Tracker |   Period Log |   Baby Widget : Baby Tracker |   Period Tracker: Menstrual Flow |   Ovulation Tracker: Period App |   Period Tracker: Her Calendar | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rating / 5 | 3.3 | 4.4 | 4.6 | 4.3 | 4.1 | 4.5 | 4.7 | 4.3 | 4.5 | 4.4 | 4.5 |
| Reviews | 1.2K | 85K | 29K | 12K | 11K | 11K | 2.9K | 891 | 643 | 427 | 387 |
| Released | 2015 | 2017 | 2009 | 2009 | 2010 | 2013 | 2012 | 2015 | 2018 | 2019 | 2021 |
| Monthly price | — | $2.39 | $1.49 | $4.99 | $1.99 | — | — | — | — | — | $1.99 |
| 6-month price | — | $11.99 | — | — | $19.99 | — | — | — | — | $49.99 | $8.99 |
| Annual price | — | $21.99 | $9.99 | $59.99 | $29.99 | — | — | — | — | $39.99 | $14.99 |
| One-time price | $0.99 | $29.99 | $39.99 | $0.99 | $37.99 | $2.99 | — | — | — | $2.99 | $19.99 |
The going rate for each plan in United States, in its own currency, shaded from the cheapest price on the row to the dearest. Plans fewer than four in ten of the priced apps sell are left out.
Once(A special period tracker) reviews
3.3 out of 5, based on 1,234 reviews.
What people like
- It is simple and easy to use
- Period predictions are very accurate
- Built-in lock keeps your info private
- Daily tips help with symptoms
What they complain about
- App crashes immediately when you open it
- Ads are too frequent and annoying
- Support is unresponsive to your problems
- Syncing issues cause loss of your data
Best app
I’ve been using this app for maybe 5 years now. All the other apps don’t track my period as good as this one does. This one seems to always be on time, the others always are off. The only thing I would change is that it would be cool to “add a partner” so that they knew when you’re on your period or about to start. I like that you can personalize your notifications for when you’re ovulating or about to start your period. “Shark week is coming” is always a hit.
Lost years of data
Not logging in to facebook anymore all my data is there
Good app.. but
I’ve had this app for many years and it’s been great up until recently. The only thing I find annoying about this app is the ads when needing to add to the calendar. It would be nice to not have to watch a video every single time I need to mark the start of my cycle. Other than that this app has been great when tracking my cycle.
Synchronize
I’ve used this app for years and for the past one it hasn’t synchronized once to my Google acct and is now stating that my personal information will be deleted. Such an unfortunate thing to happen on this app that I use monthly to track my cycle. Please figure out the synchronize feature and lack of updating. User since 2017.
Too many ads
Too many Ads especially in a foreign language has ruined the usability . I try to use my native health app now to avoid an ad at every click
Best one since forever
I’ve have used many other apps similar to track my cycle and nothing beats this app. I’ve used it years before and always come back to it because it’s so simple! Other ones are way to complicated and this one is easy to use.
Wont log in to facebook
I recently got a new phone, im trying to log in with my facebook account and it won’t let me, I’ve been using this app for over 5 years now.
Love this app
I love this app- it’s simple and effective at recording your periods and tracking the symptoms of each period. You can also record other things that take place in your monthly cycle and it can be used to help you get pregnant by working out when you are ovulating. Only thing I don’t like is how many ads pop up within such a small amount of time. No biggie though as don’t use it the majority of the month.
App keep closing out
I’ve used this for years and loved it, but this week every time I try to open the app it just closes out!!
Cannot open after update
After updating, app keeps quiting... pls fix 🙏
Great App
Have been using this app for year to keep a record
Have to Watch an Ad Just to Record Data
It's incredibly annoying. I'm just going to remove the download and find another app or manually record my dates now because it's ridiculous that I have to watch a 30 second ad just to record my period.
Would recommend
I really enjoy using this app, it’s the first one I’ve tried and I’m sticking with it. I enjoy that it has a built in lock so that people can’t view the app without the password, and that it predicts periods in advance (it helps to see if your period falls on important dates). However, I have two problems, the ads (they are manageable tho) and that I wish there was a way to turn of the ovulation and fertility tracking aspects of the app, they are a really good idea don’t get me wrong, but it would be so much better if they would just be turned on and off, as I don’t really need them. But apart from that it’s a really good app that is simple to use!
App closes immediately
Have been having the same issue as a couple of other reviewers - app closes immediately when trying to open it 😔 Been using this app since maybe 2019, have all of my data in it - please help!!
無法使用
Update後開不了！
👏
This app is great. It's pretty discreet I'd say. The only con to this app is that it resets every time you login on a different device. Update as of August 2020: I’ve been using this app for at least 5 years, but I’m not sure exactly how long due to it resetting in past versions. Now it syncs if you happen to get a new phone or something. They added a lock to get into the app, which I really like but you can disable it if you don’t want it. Still by far the best tracking app I’ve ever had. I don’t track my symptoms anymore unless they’re really bad, so I’m not using it to it’s full potential at times, but I absolutely love that I can look back on all my past symptoms/notes. I love that it can adjust how long your period should last based on previous periods. If I could add anything, I would add the option to create your own symptoms, and maybe a feature that tells you when to expect cramps/other symptoms based on when you typically have them.
No longer working
I’ve been using this app for years and it just suddenly stopped working The app keeps closing on me I can’t believe this all my data just gone
Parisa
I like this app, thank you Once🤩
App keeps closing
I really love this app, I use it to track my period, sex, and other notes, but recently, it doesn’t stay open when I try to add my period or something.
The app stay open
I’ve been using this app for few years now. But today when I tried to open it the app just shuts down. I’ve tried several times but the same thing happens. Can you help?
Cute app
Good tracker that’s flexible to use and allows you to input important details. Love the slideshows that change daily with tips coinciding to where you are with your period. Been using this one for a few years now. Super cute.
continuous crashing
apps keeps crashing and wont even let me log in 😭 i have years worth of data in here
シンプル
使いやすいです 日にちだけ管理したいので、余計な機能が無いのは助かります
アプデされたあと…
立ち上がるけど一瞬で消えるようになりました 色々と記録してたので困ります…
Ads
The ads are starting to get excessive! Please stop
Awesome
Been using this app for about a year . I love it, and it's very accurate. Definitely recommend!
Bug problems
I usually love this app. But here lately I’ve been having issues with the app. It closes automatically or doesn’t put when I end. It tries to override what I save. I can’t even open the app now. It keeps closing on its own. I tried to write to the app support but it’s not letting me. App itself closes real fast before I can take a screenshot of my period tracker dates. I even had issues looking for the app on App Store. When usually I can find it fast with no issues. I would at least like to screenshot my menstrual cycles so I can get a different app. Very disappointed because this app was my favorite one. Now I have to try out new ones.
Like it, but...
I've been using the app for quite a while now. It's very handy for trying to predict when you'll get your period. I don't mind seeing ads on a free app, but recently the ads on Once became a lot more in-your-face and obnoxious. Again, I don't mind ads and I understand why they're necessary, but I don't see the need to have a LOUD ad that can't be skipped when trying to simply open the calendar. Aside from that, I really like this app. Oh, and the "tips" are weird... and are always displayed with something like, "mood: achey all over today" and I can't figure out what that's all about.
5년간 썼는데 계속 꺼져요
5년간 썼는데 키면 바로 꺼져버려요 버그 수정 해주세요
越来越难用
无论是密码还是指纹，成功进入纯靠运气，准备卸载了
Love it
I love this app but if the color of the background of the widget can be darker I have iPhone 6 and it's to bright update please Thanks
Big problem App will not stay open
I go to open the app and it closes on its own. Never has there been any issues and I’ve used the app for years very
App Not Working
The app used to work great but now closes automatically every time I try to open it. Wont stay open for even a fraction of a second.
Could be better
Half of the app is a completely different language and you can’t change it. Also not always accurate. Has a calendar and it’s quite useful.
Love this app
I love this app to track my period. Super easy and simple.i like how I give me different tips each time I sign in.
Keeps shutting down
I’ve used this app since 2015… and the past two weeks I can’t get the app to open. Have the developers given up??
落ちます
凄く使いやすくシンプルで気に入っていたのですが、アプリを開いた瞬間落ちるようになりました。デバイスを再起動しても駄目でした。すぐ直して欲しいです。
Ads
I honestly would give it a better score if it would give me an option of taking ads out completely not just for 30 days. I also think a mood option maybe with smileys or something would be nice too.
I love this app!!!
It's cute and kinda gives off a Korean feel (which I love)!!! I love this app and it's on almost all of my devices.
Been using for years now it’s crashing
The developers website doesn’t even work for me to report a problem.. I’m annoyed now 😮💨🙄 these other apps want to charge money for a stupid period tracker
Improve symptoms
They need to improve the appearance and usability functions. I would like to see more articles related to where you are in your cycle, and better pms symptom journal.
Good but...
I don't really like some of the tips that gives... I personally don't like sexual things on there because they're not even tips
Reliable App
It's very easy to use and it's simple unlike the other apps that is quite complicated.
Ovulation
It is the 3rd time that I have uninstalled it and reinstalled the app, because the normal thing is that when I mark my first day of period, the calendar automatically marks my approximate days of ovulation, and the app has a defect in that it does not. When I mark my first day of menstruation, it marks the past days of ovulation, I need the future not the past to show me.
使いやすい、シンプル、通知が指定できてありがたい
デザインはシンプルで今のところは生理アプリによくある邪魔な広告やコラム機能も無いので、やっと求めていた生理アプリを見つけられたような気がします。ただ、自分が月経過多ぎみなので、生理期間は30日以上でも入力できるようになったらありがたいです。生理周期の計算などの理由で難しいのかもしれませんが。とりあえずこのまま広告表示や不要な機能は付けないまま提供して頂けたら嬉しいです。
Once(A special period tracker) price by country
A one-time purchase costs $0.70 in Canada and $1.53 in Hungary — 2× more for the same thing. Below is the going rate for each plan in every country that sells it — the middle price of what the app charges there, in the country's own currency with the dollar equivalent beneath it.
| Country | One-time |
|---|---|
| Albania | $0.99 |
| Algeria | $0.99 |
| Angola | $0.99 |
| Anguilla | $0.99 |
| Antigua And Barbuda | $0.99 |
| Argentina | $0.99 |
| Armenia | $0.99 |
| Australia | A$1.99$1.38 |
| Austria | €0.99$1.12 |
| Azerbaijan | $0.99 |
| Bahamas | $0.99 |
| Bahrain | $0.99 |
| Barbados | $0.99 |
| Belarus | $0.99 |
| Belgium | €0.99$1.12 |
| Belize | $0.99 |
| Benin | $0.99 |
| Bermuda | $0.99 |
| Bhutan | $0.99 |
| Bolivia | $0.99 |
| Bosnia & Herzegovina | €0.99$1.12 |
| Botswana | $0.99 |
| Brazil | R$6.90$1.33 |
| British Virgin Islands | $0.99 |
| Brunei Darussalam | $0.99 |
| Bulgaria | €0.99$1.12 |
| Burkina Faso | $0.99 |
| Cambodia | $0.99 |
| Cameroon | $0.99 |
| Canada | CA$0.99$0.70 |
| Cape Verde | $0.99 |
| Cayman Islands | $0.99 |
| Chad | $0.99 |
| Chile | CLP 990$1.02 |
| China | CN¥8.00$1.19 |
| Colombia | COP 4,900$1.48 |
| Congo | $0.99 |
| Congo, Democratic Republic | $0.99 |
| Costa Rica | $0.99 |
| Cote Divoire | $0.99 |
| Croatia | €0.99$1.12 |
| Cyprus | €0.99$1.12 |
| Czech Republic | CZK 29.00$1.34 |
| Denmark | DKK 9.00$1.36 |
| Dominica | $0.99 |
| Dominican Republic | $0.99 |
| Ecuador | $0.99 |
| Egypt | EGP 49.99$0.96 |
| El Salvador | $0.99 |
| Estonia | €0.99$1.12 |
| Fiji | $0.99 |
| Finland | €0.99$1.12 |
| France | €0.99$1.12 |
| Gabon | $0.99 |
| Gambia | $0.99 |
| Georgia | $0.99 |
| Germany | €0.99$1.12 |
| Ghana | $0.99 |
| Greece | €0.99$1.12 |
| Grenada | $0.99 |
| Guatemala | $0.99 |
| Guinea-bissau | $0.99 |
| Guyana | $0.99 |
| Honduras | $0.99 |
| Hong Kong | HK$8.00$1.02 |
| Hungary | HUF 499$1.53 |
| Iceland | $0.99 |
| India | ₹99.00$1.03 |
| Indonesia | IDR 19,000$1.06 |
| Iraq | $0.99 |
| Ireland | €0.99$1.12 |
| Israel | ₪2.90$0.94 |
| Italy | €0.99$1.12 |
| Jamaica | $0.99 |
| Japan | ¥150$0.95 |
| Jordan | $0.99 |
| Kazakhstan | KZT 499.00$1.13 |
| Kenya | $0.99 |
| Kosovo | €0.99$1.12 |
| Kuwait | $0.99 |
| Kyrgyzstan | $0.99 |
| Lao Peoples Democratic Republic | $0.99 |
| Latvia | €0.99$1.12 |
| Lebanon | $0.99 |
| Liberia | $0.99 |
| Libya | $0.99 |
| Lithuania | €0.99$1.12 |
| Luxembourg | €0.99$1.12 |
| Macao | $0.99 |
| Macedonia | $0.99 |
| Madagascar | $0.99 |
| Malawi | $0.99 |
| Malaysia | MYR 4.90$1.20 |
| Maldives | $0.99 |
| Mali | $0.99 |
| Malta | €0.99$1.12 |
| Mauritania | $0.99 |
| Mauritius | $0.99 |
| Mexico | MX$19.00$1.04 |
| Micronesia | $0.99 |
| Moldova | $0.99 |
| Mongolia | $0.99 |
| Montenegro | €0.99$1.12 |
| Montserrat | $0.99 |
| Morocco | $0.99 |
| Mozambique | $0.99 |
| Myanmar | $0.99 |
| Namibia | $0.99 |
| Nauru | $0.99 |
| Nepal | $0.99 |
| Netherlands | €0.99$1.12 |
| New Zealand | NZ$1.99$1.12 |
| Nicaragua | $0.99 |
| Niger | $0.99 |
| Nigeria | NGN 1,500.00$1.13 |
| Norway | NOK 9.00$0.93 |
| Oman | $0.99 |
| Pakistan | PKR 300$1.08 |
| Palau | $0.99 |
| Panama | $0.99 |
| Papua New Guinea | $0.99 |
| Paraguay | $0.99 |
| Peru | PEN 4.90$1.42 |
| Philippines | ₱49.00$0.78 |
| Poland | PLN 4.99$1.28 |
| Portugal | €0.99$1.12 |
| Qatar | QAR 2.99$0.82 |
| Romania | RON 4.99$1.07 |
| Russia | RUB 99.00$1.19 |
| Rwanda | $0.99 |
| Sao Tome & Principe | $0.99 |
| Saudi Arabia | SAR 4.99$1.33 |
| Senegal | $0.99 |
| Serbia | €0.99$1.12 |
| Seychelles | $0.99 |
| Sierra Leone | $0.99 |
| Singapore | SGD 0.98$0.77 |
| Slovakia | €0.99$1.12 |
| Slovenia | €0.99$1.12 |
| Solomon Islands | $0.99 |
| South Africa | ZAR 19.99$1.20 |
| South Korea | ₩1,100$0.81 |
| Spain | €0.99$1.12 |
| Sri Lanka | $0.99 |
| St. Kitts and Nevis | $0.99 |
| St. Lucia | $0.99 |
| St. Vincent & The Grenadines | $0.99 |
| Suriname | $0.99 |
| Swaziland | $0.99 |
| Sweden | SEK 9.00$0.90 |
| Switzerland | CHF 1.00$1.20 |
| Taiwan | NT$30.00$0.94 |
| Tajikistan | $0.99 |
| Tanzania | TZS 2,900.00$1.10 |
| Thailand | THB 29.00$0.86 |
| Tonga | $0.99 |
| Trinidad and Tobago | $0.99 |
| Tunisia | $0.99 |
| Turkey | TRY 49.99$1.02 |
| Turkmenistan | $0.99 |
| Turks and Caicos | $0.99 |
| Uganda | $0.99 |
| Ukraine | $0.99 |
| United Arab Emirates | AED 2.99$0.81 |
| United Kingdom | £0.99$1.31 |
| United States | $0.99 |
| Uruguay | $0.99 |
| Uzbekistan | $0.99 |
| Vanuatu | $0.99 |
| Venezuela | $0.99 |
| Vietnam | ₫29,000$1.12 |
| Yemen | $0.99 |
| Zambia | $0.99 |
| Zimbabwe | $0.99 |
Once(A special period tracker) FAQ
- Is Once(A special period tracker) free?
- Yes. The app and its basic features are free, in all 174 countries it sells in. Premium features are paid: they start from $0.99 (US), across 1 one-time purchase.
- Does Once(A special period tracker) have a free trial?
- No. None of its offers (US) come with a free trial.
- Where is Once(A special period tracker) cheapest?
- A one-time purchase costs CA$0.99 (≈$0.70) in Canada and HUF 499 (≈$1.53) in Hungary, its cheapest and dearest countries.
- What are the best alternatives to Once(A special period tracker)?
- Bom Calendar - Period tracker (4.4 from 84,501 reviews, premium from $2.39), Period Tracking Calendar (4.6 from 28,521 reviews, premium from $1.49) and iPeriod Lite Period Tracker (4.3 from 12,082 reviews, premium from $0.99).
Once(A special period tracker) download
Last updated 2 months ago.
Once(A special period tracker) sells in 174 countries. It was released 11 years and 3 months ago, on 17 Jun 2015. It holds a 3.3 rating from 1,234 reviews.
Supports 5 languages: English, Japanese, Korean, Chinese, Thai.
How much does Once(A special period tracker) make?
Third-party estimates for the last 30 days, worldwide — not the store's own figures, which Apple publishes for nobody.
Revenue by plan
- One-time 100%
Revenue by country
- South Korea 70%
- Taiwan 11%
- United States 11%
- Japan 1%