Delvr vs Abacus Plus+
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Delvr
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How Delvr Works Delvr helps you understand any topic through layered explanations: โข Simple โ a clear, plain-language overview โข Why / How โ deeper context and reasoning โข Expert Peek โ a more advanced look for curious learners Users can enter a question and immediately explore explanations at different depths, all within a single flow. Access & Usage โข Delvr is currently fully free to use. โข No account, login, or subscription is required. โข All explanation layers are available without restrictions.
Abacus Plus+
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Abacus Plus makes learning mental math simple, fun, and effective โ for kids and adults alike. Using the time-tested abacus method, Abacus Plus helps you build lightning-fast calculation skills through interactive practice, visual bead-based learning, and progressive difficulty levels. WHY ABACUS PLUS? - Learn the traditional abacus technique step by step - Practice addition, subtraction, multiplication, and division - Colorful, intuitive interface designed for focus and engagement - Track your speed and accuracy over time - Structured levels that grow with your skill PERFECT FOR - Kids building foundational math skills - Students preparing for competitive exams - Anyone who wants to sharpen mental calculation speed - Parents looking for a screen-time activity with real educational value HOW IT WORKS Abacus Plus combines the classic abacus method with modern, gamified practice sessions. Each exercise reinforces number sense and mental calculation, helping you go from counting beads to solving problems entirely in your head. Download Abacus Plus today and start your journey to faster, sharper mental math. LEGAL Privacy Policy: https://vijayvir.github.io/abacus_PrivacyPolicy.txt Terms of Use: https://vijayvir.github.io/abacus_Terms.txt Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support & Contact: virvijay37@gmail.com Made by Vijayvir Singh (Antfire Labs).
Screenshots
Verdict
The clearest difference is price: Delvr at Free against Abacus Plus+'s $2.99. Delvr also leads on iOS requirement (15.1 vs 26.5). Abacus Plus+'s advantage is update cadence (every 4 days vs fortnightly). On 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
Delvr is free to download; Abacus Plus+ costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Delvr ships an update fortnightly, Abacus Plus+ every 4 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.
| Parameter | Delvr | Abacus Plus+ |
|---|---|---|
| Price | Free โ better | $2.99 |
| Update frequency | Fortnightly | Every 4 days โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 15.1 โ better | 26.5 |
| Further details โ not scored | ||
| Size | 38 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Maevin Labs LLC | Vijayvir Singh |
In-app purchases
Delvr
No in-app purchases
Abacus Plus+
No in-app purchases









