eSquirrel vs reli.check!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eSquirrel
This app helps users learn and retain information through spaced repetition quizzes. It offers gamified learning with quests and levels, ideal for exam preparation and employee training. Practice anytime, anywhere, and track your progress against classmates.
- Spaced repetition for long-term memory
- Gamified quests with acorn rewards
- Progress tracking and ranking lists
- Mobile-optimized quiz format
- Tailored learning materials
- Employee training modules
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eSquirrel for education Successfully learn to many textbooks and courses - especially for the school-leaving exam, vocational maturity exam & entrance tests. With the support of A1. With eSquirrel you don't just practise the questions once and forget them, but repeat them until you have memorised them! eSquirrel for business Digital learning for employees without a laptop or the internet. The clever combination of gamification, blended and mobile learning motivates employees to engage in independent but also guided training. With eSquirrel for business you also learn with ready-to-use course materials on data protection, first aid, occupational safety and much more! An eSquirrel course is divided into quests each consisting of up to 10 questions. Embark on a quest by answering questions to collect acorns. But beware: A quest is not completed easily! You can only complete them once you have answered each question correctly. Don’t worry: We will help you! The first time you successfully complete a quest, you have made it to the Bronze level. Increase the value of your acorns even more by moving from level to level in a quest. Did you make it to the Silver level already? With eSquirrel you only repeat quests when you are about to forget them. Every child knows that you learn by repeating. According to the principle of “spaced repetitions“, you only repeat when you might start to forget your knowledge. The more often you repeat, the longer these intervals become. In this way you transfer knowledge into your long-term memory – without getting bored. Are you waiting for the bus? For friends? Till the food comes? Ideal time to complete a quest! You don’t need to have your textbook with you, you can simply answer quiz questions. Whenever and wherever you want. Our questions are mobile optimized. They easily fit on a smartphone and can usually be solved without any tools. Are you one of the best? In the ranking list you see yourself and the TOP 33% of your classmates. If you are not assigned to a teacher, you will be compared to all other students who also practice independently of a teacher. Are you one of the best? With eSquirrel you use high quality learning materials tailored to your subject or exam. Practice matching the textbook or course materials created by university lecturers, high school professors and textbook authors. With an eSquirrel course you will learn tested knowledge in the right formats.
reli.check!
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Die Quiz-App für den Religionsunterricht, „reli.check!“, ermöglicht den SchülerInnen auf spielerische Art Themen des Lehrplans der vierten Schulstufe sowie der Sekundarstufe 1 (ZIS, NMS und AHS) zu festigen und zu vertiefen. Die App kann auch als Einstieg in ein neues Thema verwendet werden, um das Vorwissen der SchülerInnen zu erfragen. Die App dient als innovatives Element im Bereich der Didaktik und kann SchülerInnen den sinnvollen Gebrauch neuer Medien erschließen. So kann dieses digitale Lernspiel gut in den Kontext von „face-to-face“ Unterricht eingebunden werden und die Qualität von Lernprozessen steigern.
Screenshots
Verdict
The clearest difference is in-app purchases: reli.check! at none against eSquirrel's 10. reli.check! also leads on update cadence (every 5 days vs every 5 weeks) and iOS requirement (9.1 vs 15.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. eSquirrel sells 10 one-off in-app purchases. reli.check! asks for nothing beyond the download.
eSquirrel ships an update every 5 weeks, reli.check! every 5 days. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | eSquirrel | reli.check! |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 5 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 9.1 — better |
| Further details — not scored | ||
| Size | 60 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | eSquirrel GmbH | Fluxguide Ausstellungssysteme GmbH |
In-app purchases
eSquirrel
- DigiUp NEXT (hu)Free
- DigiUp NEXT (at)Free
- Englisch Vocabulary for MORE!1Free
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- Digitale Grundbildung 1Free
- LSL: LebensmittelverschwendungFree
- Märchen für alle – Märchenklassiker$14.99
- Digitale Grundbildung 3$14.99
- einfach bio 4 (öbv)$14.99
- Musik 1 (eSquirrel)$14.99
- Innere Medizin (Herold)$89.99
reli.check!
No in-app purchases









