Abacus & Calculator vs Sci
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Abacus & Calculator
This app combines a modern calculator with a traditional abacus for a unique calculation experience. It offers expression calculation and a history log, all optimized for iPad and other Apple devices.
- Classical keyboard
- Expression calculating
- Calculating history
- Traditional abacus (Chinese/Japanese)
- iPad/iPhone/iPod Touch support
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A brand-new calculator with an old-fashioned Chinese/Japanese abacus, is specially designed for iPad. [FEATURES] • Classical & practical keyboard • Expression calculating • Calculating history • Old-fashioned abacus (Chinese, Japanese) • Supports iPad/iPhone/iPod Touch • Supports Retina display
Sci
Customize your home screen with a calculator widget featuring 16 unique sci-fi themes. Enjoy futuristic aesthetics and sounds, transforming your device into a futuristic interface with a simple tap.
- 16 sci-fi themes
- Home screen widget
- Tap to switch themes
- Futuristic sounds
- iPhone and iPad support
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Enjoy the beautiful looks and sounds of 16 sci-fi styles on your home screen with this calculator widget. Just add the widget to your home screen and tap the top text area to scroll and switch themes. Make your iPhone or iPad look and sound like a device from the future.
Screenshots
Verdict
The clearest difference is review sentiment: Sci at 100% against Abacus & Calculator's 50%. Sci also leads on rating (5.0 vs 3.7) and update cadence (every 6 months vs every 28 months). Abacus & Calculator's advantage is price ($0.99 vs $3.99) and ratings volume (15 vs 3). On ads, in-app purchases, monetization model 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
Abacus & Calculator costs $0.99 and Sci $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Sci holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Abacus & Calculator has 15 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of Abacus & Calculator's written reviews are positive against 100% of Sci's.
Abacus & Calculator ships an update every 28 months, Sci every 6 months. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.
| Parameter | Abacus & Calculator | Sci |
|---|---|---|
| Price | $0.99 — better | $3.99 |
| Rating | 3.7 (15 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 15 — better | 3 |
| Update frequency | Every 28 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 21 MB |
| Age rating | 4+ | 17+ |
| Developer | 方明 陈 | NSTE, LLC |
Customer experience
Abacus & Calculator
Sci
In-app purchases
Abacus & Calculator
No in-app purchases
Sci
No in-app purchases
Questions
Is Abacus & Calculator free?
Is Sci free?
Which has better reviews, Abacus & Calculator or Sci?
Do Abacus & Calculator or Sci have ads?
Which is updated more often, Abacus & Calculator or Sci?
Other comparisons
