Aergia vs StudyKey
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Aergia
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Aergia is a screen time control app that helps you stop getting distracted and start using your iPhone more intentionally. By adding a short pause before opening selected apps, Aergia gives you a moment to reflect and decide whether you really want to open the distracting app. Instead of fully blocking apps, Aergia uses gentle friction with a protective screen that helps you stay mindful and in control of your screen time. In the free version of Aergia, you can select only one distracting app. In the paid version, you can select an unlimited number of apps. The settings let you choose the wait time in seconds before opening an app, as well as a grace period during which you can use the selected app without interruption. Strict Mode allows you to apply stronger limits with fewer bypass options when you need maximum focus. Aergia also lets you track app usage with daily statistics and a 7-day overview for each monitored app. Aergia is designed for focus, productivity, and building healthier digital habits without completely restricting access to your apps. Whether you're studying, working, or trying to stay present, small intentional pauses help reduce distractions and support deeper focus. Privacy All your screen time data stays on your device. Aergia does not collect, sell, or share your data. Privacy Policy: https://manager108.com/en/aergia/privacy-policy Terms of Service: https://manager108.com/en/aergia/terms-and-conditions
StudyKey
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Make a little learning part of your screen-time routine. StudyKey combines app boundaries, flashcards and focused time in one calm space. Choose how you want to study, set your own rules and make room for what matters. LEARN TO UNLOCK Choose apps to protect and the decks you want to practise. Complete a learning challenge in StudyKey to earn access according to your rule. Set the number of cards and the minutes earned per card, or choose a total break duration. FLASHCARDS, VOCABULARY AND QUIZZES Try ready-made examples to find your learning style. Build knowledge cards, practise words with example sentences or answer four-choice quizzes. Review with spaced repetition, edit individual cards and remove cards or whole decks whenever you need. CREATE FROM YOUR OWN MATERIAL Describe a topic, paste notes, attach a PDF or choose a photo. AI helps turn your source into a draft you can review before saving. Preview attachments and add optional instructions. Photos can be up to 10 MB and are optimised before upload; PDFs can contain up to 5 pages and be up to 2 MB. AI can make mistakes, so check every answer. FOCUS AND SEE YOUR RHYTHM Start a focus session with an intention. Build a personal focus tapestry over time and explore your week, month or year. Share the selected period as an image. BOUNDARIES THAT FIT YOUR DAY Use learning challenges, focus sessions, daily app limits or scheduled quiet hours. App protection requires Screen Time permission on a supported device. STUDYKEY PREMIUM Choose the existing weekly or yearly subscription. The weekly plan includes 75 AI generation credits per calendar week, resetting Monday at 00:00 UTC. The yearly plan includes 75 credits per calendar month, resetting on the first day at 00:00 UTC. One generation attempt uses one credit and creates up to 10 cards. Failed generation attempts also use a credit; unused credits do not roll over. Saved cards and manually created cards do not use AI credits. Shared service safety limits may temporarily affect generation. Subscriptions renew automatically unless cancelled in Apple Settings. Prices and billing periods are shown before purchase. Privacy policy: https://beratonerdev.com/privacy/kotu Terms of use: https://beratonerdev.com/terms/kotu
Screenshots
Verdict
The clearest difference is update cadence: StudyKey at every 9 days against Aergia's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Aergia sells 4 in-app purchases, starting at $2.99 per 7 days and StudyKey sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Aergia ships an update every 3 weeks, StudyKey every 9 days. Both last shipped on October 31, 2026.
| Parameter | Aergia | StudyKey |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 9 days โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad โ better |
| Requires iOS | 18.1 | 18.0 โ better |
| Further details โ not scored | ||
| Size | 8 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Vladimir Kurganov | BERAT ONER |
In-app purchases
Aergia
- Aergia Premium Weekly3 Days trial$2.997 Days
- Aergia Premium Monthly3 Days trial$3.991 Month
- Aergia Premium Annual Special Offer$24.991 Year
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- Aergia Premium Annual$34.991 Year
StudyKey
- Weekly Premium$4.997 Days
- Yearly Premium$29.991 Year









