Device Tester - System Checker
Check Memory & Test Hardware
How much does Device Tester - System Checker cost?
Prices are current as of 16 Oct 2026.
1 one-time purchase from $1.99
In the United States, Device Tester - System Checker has 1 one-time purchase priced $1.99.
| Product | Price |
|---|---|
| Pro Version | $1.99 |
See what Device Tester - System Checker costs in all 174 countries →
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| Device Tester - System Checker |   Mobile Master-CPU Master |   Battery Life Health Doctor Pro |   AI Cleaner Max-Clean Up Device |   CPU Detector - Hardware Info |   Sensors Toolbox |   Usage Device Monitor & Status |   SYSMonitor - System Status Wgt |   Battery Power Doctor & Booster |   my Battery Pal Saver Optimizer |   Inspectir | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rating / 5 | 4.1 | 4.6 | 4.3 | 4.2 | 4.5 | 4.7 | 4.6 | 3.2 | 3.4 | 3.6 | 4.8 |
| Reviews | 1.8K | 92K | 22K | 16K | 2.8K | 1.1K | 1K | 571 | 74 | 31 | 28 |
| Released | 2014 | 2018 | 2016 | 2015 | 2018 | 2017 | 2021 | 2014 | 2012 | 2013 | 2023 |
| Monthly price | — | $0.49 | — | $7.99 | — | — | $0.99 | — | — | — | — |
| Annual price | — | $2.99 | $6.99 | $24.99 | — | — | $9.99 | — | — | — | — |
| One-time price | $1.99 | $1.99 | $1.99 | — | $0.99 | $1.99 | $19.99 | $1.99 | — | — | — |
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.
Device Tester - System Checker reviews
4.1 out of 5, based on 1,787 reviews.
What people like
- Simple and easy to use design
- Helps monitor real-time memory usage
- One time payment is very cheap
What they complain about
- App crashes constantly on newer devices
- Too many annoying ads interrupt usage
- Paid features often fail to work
Well constructed
Very user friendly design! Excellently setup, love that you have the ability to adjust the flashlight brightness! Well thought out and executed layout. Even the standard free version is great giving an in depth analysis of the device it’s installed on, with the option to compare your current model of phone to other models on the market. And for a one time payment of only $2, you can increase the range of analysis to give real time feedback on an even deeper level of phone performance! Two thumbs up 👍🏽👍🏽
It crashes
It crashes when I use it. I paid for it, and it still happens. The worst $2 I've ever spent in my life.
Cleans memory and has annoying ads
Doing a scan on the free version seems to free up some memory and improve app performance but the ads are annoying
It’s ok
Not as good as it use to be. They removed some of the free stuff like deep clean. I can’t tell now it does much of anything
ไช้ได้จริงเหรอ
ผมลอง clear ramโดยไช้แอพนี้ดู แอพอื่นๆที่ผมเปิดไว้ก็ยังทำงานกันอยู่ ปกติ ถ้าclear ram ทุกอย่างมันต้องหยุดไม่ไช่เหรอ
Great App!
Always worked well as iOS has gone through many revisions. Used it since my old iPhone 5. Use it almost daily.
Never works
I bought the good edition. Every time I run a scan, the app crushes and shuts down. I have tried for weeks to get it to work. I have the 16 gig ram IPad, which is the newest and most powerful one. I have all of my software updated. This is ridiculous.
Crash issues for iOS 14
Never have an issue with his app until now when I scan my memory it keeps crashing after update to the new iOS 14. Please fix these issues.
Much needed improvement
It’s glitchy. Is it really oh wow I don’t want like broken record! Fix this.
Nice small app
Nice small app for memory cleaning tho the increase in adds is annoying, the app need to be able keep up with new phones for clean a lot more dept
Awesome
Get way of optimizing your phone- would recommend.
Crash
Crash. Crash, crash, crash. CRASH!
Good
Keep going on developing!
Does very little
Only lets you monitor usage, not clean junk files like I wanted. Very bloated with ads for the small service it does.
Tops
โฆษณามันจะใหญ่ไปไหน กดออกไม่ได้
Helpful
It's Smart App That In Fact Let Me See The True Made Of It As Soon As I Opened It The Amount was Different And Its Reduce To Normal ThankYou A lot For Your Great Job That App Made For Free To Me I Am Happy For You.
Constantly crashes
I even paid for app will not let me use updated!
++Onisuka
ดีครับ
กินเงินอัพเป็นตัว โปร
พอกด Activate ให้อัพเกรด เป็น ตัวโปร เสียเงิน 69 บาท พอกดเข้าใหม่ ยังต้องมา แอคติเวท ซ้ำ คืออะไร กินเงินฟรี เหรอออ
No longer works
App works- maybe.. if there was more proof of action that the app does, I'd be happier. The people whom upgraded to pro should potentially be able to just download the pro version of the app. When I use "system" scan, no longer does it release afterwards. Always 0.0mb releases. :/ advice?
Really good app
I wanted this app for one feature. I have an iPhone 6+ with 1 gig ram. My phone tends to slow down at times and I wanted to keep track of my ram usage. This app does exactly what I need. By tapping scan, it scans your ram and closes unnecessary processes. I can see available ram and used ram. 5 stars
Memory and disc utility apps
You are so right Ari-yo, it blows my mind that I can’t find an Apple app that will perform a diagnostic to see what is wrong with the iPad. Even an app to clean fragments of deleted apps or any other unnecessary data clogging the iPad performance. What a difference to when I used a Microsoft PC or an android phone. With all the utilities available to improve performance I became the computer whiz for my family, friends and coworkers. Don’t they realize if they gave us the software we wouldn’t be filling up their support system with stupid questions. They wouldn’t need to pay so much stuff salaries and benefits. NRG
Fast and versatile
👍🧡
Non vale niente. NON COMPRATELA
Una app incapace di gestire la RAM e di pulire HD. Praticamente inutile. Non da neanche una giusta lettura della capacità del HD e tanto meno della RAM. Boiata colossale
จะลองสักหน่อย
เสือกโหลดไม่ได้
كُويس
رهيب
Crashes all the time and slow iOS 14
Have not been able todo a scan the app crashes. Have to delete from my iPad.
แต่สงสัย
ทำไมอัพเดทเป็น Smart memory Pro แล้วไม่กี่วัน ก็กลับมาเป็น Smart memory lite ได้ งงมากค่ะ ????
Ok
Ok
scan erase some files
please fix, when i press scan it erase some files. such as game files and makes me cant get access to the game
Very good
I like it
Does not appear to do anything.
I ran the check, and I know nothing more about my iPad than before I ran it.
น่าจะอัตโนมัติได้ด้วยคงจะดีคับ
ดี
Only scan is free
This app does nothing but scan and show ads unless you upgrade. It DOES nothing else. This company needs to learn about truth in advertising. I won't use any of their products.
ขอแบบ ฟรีๆหน่อยครับ
ขอแบบ ฟรีๆ หน่อย จะดีที่สุด..จะให้ดาวเต็มเลย
Good!
I like it.
Just the junk app
This apps when you download right away ask you to purchase pro version, and said up to six devices can share. It real not. Advice all people not use it, bad enough app
ดีครับ
เร็วกว่าเดิมนิด
Not bad
Not bad
Good app
คิดจะลองใช้ pro ดูว่าจะเป็นยังไง
ari-yo
what does the u.s. iTunes app store have against system optimizer apps, system memory refreshing apps, & battery boosting apps? seriously! every time i find one that does it all, inevitably the app store phases it out. these types of utilities are readily available in every other store, but not in the u.s. store. it's as though apple doesn't want it's customers to be able to enjoy the benefits of this type of utility, and they don't have the right to decide that for their customers. (and yet they have done just that) hasn't anyone out there noticed this? i cannot be the only person.
Not full potential
This App had a lot more potential, but for some reason it seems the creator just fizzled out half way through.
When working, an essential app!
Edited 040217: Didn't realize this review was still up! The current version is due to be updated since 10.3 came out and changed the whole file system. Just prior to 10.3, this had to be one of my most used apps. I was completely wrong about the app when it was working again and really needed to retract my previous review. This app resolved an issue that I honestly don't understand how Apple failed to build in themselves! It worked quite well once it was updated and while it could have been a little more obvious as how to return it to the pro version, I'd have to say that it was very much worth the cost! Original review: The most recent update forced the removal of any of the cleaning features, even for those that purchased the product. I DON'T need a paid-for memory monitor, I need what the program used to do and what I explicitly purchased the app to accomplish in the 1st place: clear memory & clean-up junk files. Why force the update on us before letting us opt out and only say you intentionally broke our paid-for app after the fact? I want a refund!!!
Of little value
See little purpose in this app other than to link you to buy the Pro version and advertise games. It show memory usage, most of which can be found in system settings, and has really no other function. Pretty worthless "lite" version that doesn't show the value of purchasing the "pro" version.
It's alright!!!
Its an okay app i just wish it showed more and had some exciting features!
Good
Good👍
Only scans
The description doesn't say you need to upgrade to pro to do more than scan
Handy
Very handy to have.
Idioma
Não gostei mto por não ser em português.
I think it works
Works, but I don't like the GUI, and it will not switch to landscape view when you turn your device. Will keep using till I find a better one.
Device Tester - System Checker price by country
A one-time purchase costs $1.60 in Israel and $3.08 in Hungary — 1.9× 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 |
|---|---|
| Afghanistan | $1.99 |
| Albania | $1.99 |
| Algeria | $1.99 |
| Angola | $1.99 |
| Anguilla | $1.99 |
| Antigua And Barbuda | $1.99 |
| Argentina | $1.99 |
| Armenia | $1.99 |
| Australia | A$2.99$2.08 |
| Austria | €1.99$2.26 |
| Azerbaijan | $1.99 |
| Bahamas | $1.99 |
| Bahrain | $1.99 |
| Barbados | $1.99 |
| Belarus | $1.99 |
| Belgium | €1.99$2.26 |
| Belize | $1.99 |
| Benin | $1.99 |
| Bermuda | $1.99 |
| Bhutan | $1.99 |
| Bolivia | $1.99 |
| Bosnia & Herzegovina | €1.99$2.26 |
| Botswana | $1.99 |
| Brazil | R$12.90$2.55 |
| British Virgin Islands | $1.99 |
| Brunei Darussalam | $1.99 |
| Bulgaria | €1.99$2.23 |
| Burkina Faso | $1.99 |
| Cambodia | $1.99 |
| Cameroon | $1.99 |
| Canada | CA$2.99$2.11 |
| Cape Verde | $1.99 |
| Cayman Islands | $1.99 |
| Chad | $1.99 |
| Chile | CLP 1,990$2.04 |
| China | CN¥15.00$2.23 |
| Colombia | COP 9,900$2.97 |
| Congo | $1.99 |
| Congo, Democratic Republic | $1.99 |
| Costa Rica | $1.99 |
| Cote Divoire | $1.99 |
| Croatia | €1.99$2.26 |
| Cyprus | €1.99$2.26 |
| Czech Republic | CZK 49.00$2.27 |
| Denmark | DKK 19.00$2.88 |
| Dominica | $1.99 |
| Dominican Republic | $1.99 |
| Ecuador | $1.99 |
| Egypt | EGP 99.99$1.92 |
| El Salvador | $1.99 |
| Estonia | €1.99$2.26 |
| Fiji | $1.99 |
| Finland | €1.99$2.26 |
| France | €1.99$2.23 |
| Gabon | $1.99 |
| Gambia | $1.99 |
| Georgia | $1.99 |
| Germany | €1.99$2.23 |
| Ghana | $1.99 |
| Greece | €1.99$2.26 |
| Grenada | $1.99 |
| Guatemala | $1.99 |
| Guinea-bissau | $1.99 |
| Guyana | $1.99 |
| Honduras | $1.99 |
| Hong Kong | HK$18.00$2.29 |
| Hungary | HUF 999$3.08 |
| Iceland | $1.99 |
| India | ₹199.00$2.09 |
| Indonesia | IDR 39,000$2.17 |
| Iraq | $1.99 |
| Ireland | €1.99$2.26 |
| Israel | ₪4.90$1.60 |
| Italy | €1.99$2.23 |
| Jamaica | $1.99 |
| Japan | ¥300$1.91 |
| Jordan | $1.99 |
| Kazakhstan | KZT 999.00$2.27 |
| Kenya | $1.99 |
| Kosovo | €1.99$2.26 |
| Kuwait | $1.99 |
| Kyrgyzstan | $1.99 |
| Lao Peoples Democratic Republic | $1.99 |
| Latvia | €1.99$2.26 |
| Lebanon | $1.99 |
| Liberia | $1.99 |
| Libya | $1.99 |
| Lithuania | €1.99$2.26 |
| Luxembourg | €1.99$2.26 |
| Macao | $1.99 |
| Macedonia | $1.99 |
| Madagascar | $1.99 |
| Malawi | $1.99 |
| Malaysia | MYR 9.90$2.43 |
| Maldives | $1.99 |
| Mali | $1.99 |
| Malta | €1.99$2.26 |
| Mauritania | $1.99 |
| Mauritius | $1.99 |
| Mexico | MX$39.00$2.16 |
| Micronesia | $1.99 |
| Moldova | $1.99 |
| Mongolia | $1.99 |
| Montenegro | €1.99$2.26 |
| Montserrat | $1.99 |
| Morocco | $1.99 |
| Mozambique | $1.99 |
| Myanmar | $1.99 |
| Namibia | $1.99 |
| Nauru | $1.99 |
| Nepal | $1.99 |
| Netherlands | €1.99$2.26 |
| New Zealand | NZ$3.99$2.25 |
| Nicaragua | $1.99 |
| Niger | $1.99 |
| Nigeria | NGN 3,200.00$2.41 |
| Norway | NOK 29.00$3.02 |
| Oman | $1.99 |
| Pakistan | PKR 500$1.81 |
| Palau | $1.99 |
| Panama | $1.99 |
| Papua New Guinea | $1.99 |
| Paraguay | $1.99 |
| Peru | PEN 9.90$2.88 |
| Philippines | ₱129.00$2.06 |
| Poland | PLN 9.99$2.56 |
| Portugal | €1.99$2.26 |
| Qatar | QAR 7.99$2.20 |
| Romania | RON 9.99$2.10 |
| Russia | RUB 199.00$2.37 |
| Rwanda | $1.99 |
| Sao Tome & Principe | $1.99 |
| Saudi Arabia | SAR 9.99$2.66 |
| Senegal | $1.99 |
| Serbia | €1.99$2.23 |
| Seychelles | $1.99 |
| Sierra Leone | $1.99 |
| Singapore | SGD 2.98$2.33 |
| Slovakia | €1.99$2.23 |
| Slovenia | €1.99$2.26 |
| Solomon Islands | $1.99 |
| South Africa | ZAR 39.99$2.44 |
| South Korea | ₩3,300$2.43 |
| Spain | €1.99$2.23 |
| Sri Lanka | $1.99 |
| St. Kitts and Nevis | $1.99 |
| St. Lucia | $1.99 |
| St. Vincent & The Grenadines | $1.99 |
| Suriname | $1.99 |
| Swaziland | $1.99 |
| Sweden | SEK 29.00$2.90 |
| Switzerland | CHF 2.00$2.42 |
| Taiwan | NT$60.00$1.85 |
| Tajikistan | $1.99 |
| Tanzania | TZS 5,900.00$2.23 |
| Thailand | THB 79.00$2.36 |
| Tonga | $1.99 |
| Trinidad and Tobago | $1.99 |
| Tunisia | $1.99 |
| Turkey | TRY 99.99$2.04 |
| Turkmenistan | $1.99 |
| Turks and Caicos | $1.99 |
| Uganda | $1.99 |
| Ukraine | $1.99 |
| United Arab Emirates | AED 7.99$2.18 |
| United Kingdom | £1.99$2.64 |
| United States | $1.99 |
| Uruguay | $1.99 |
| Uzbekistan | $1.99 |
| Vanuatu | $1.99 |
| Venezuela | $1.99 |
| Yemen | $1.99 |
| Zambia | $1.99 |
| Zimbabwe | $1.99 |
Device Tester - System Checker FAQ
- Is Device Tester - System Checker free?
- Yes. The app and its basic features are free, in all 174 countries it sells in. Premium features are paid: they start from $1.99 (US), across 1 one-time purchase.
- Does Device Tester - System Checker have a free trial?
- No. None of its offers (US) come with a free trial.
- Where is Device Tester - System Checker cheapest?
- A one-time purchase costs ₪4.90 (≈$1.60) in Israel and HUF 999 (≈$3.08) in Hungary, its cheapest and dearest countries.
- What are the best alternatives to Device Tester - System Checker?
- Mobile Master-CPU Master (4.6 from 92,228 reviews, premium from $0.49), Battery Life Health Doctor Pro (4.3 from 22,374 reviews, premium from $1.99) and AI Cleaner Max-Clean Up Device (4.2 from 16,182 reviews, premium from $3.99).
Device Tester - System Checker download
Last updated 21 days ago.
Device Tester - System Checker sells in 174 countries. It was released 12 years and 5 months ago, on 8 May 2014. It holds a 4.1 rating from 1,787 reviews.
Supports 1 language: English.
How much does Device Tester - System Checker 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
- United States 27%
- Thailand 10%
- Italy 6%
- Germany 5%