i vs Unvigintuple Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
i
Access and manage files on USB drives directly from your Apple device. Stream music, watch videos, and view photos stored on your USB flash drive. It also facilitates photo synchronization.
- Open USB Flash Drive files
- Stream music
- Watch videos
- View photos
- Sync photos
- USB 3.0 card reader compatible
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can open the" USB Flash Drive" Apple USB disk files, such as: music, video, photos, can beUSB3.0_ cardreade Apple USB disk and apple devices, sync photos. Photograph
Unvigintuple Calc
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Display 21 calculators and perform calculations with each one.
Screenshots
Verdict
The clearest difference is ads: i at none against Unvigintuple Calc's shown. i also leads on iOS requirement (11.0 vs 15.8.3). Unvigintuple Calc's advantage is update cadence (every 2 weeks vs every 3 months). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
i ships an update every 3 months, Unvigintuple Calc every 2 weeks. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.
| Parameter | i | Unvigintuple Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 2.1 (83 ratings) — better | — |
| Positive reviews | 9.9% of reviews | — |
| Number of ratings | 83 — better | — |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.8.3 |
| Further details — not scored | ||
| Size | 30 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | 裕雨 程 | Hideaki Uchikoshi |
Bugs and requests
i
Reported bugs
4 issues- App crashes when trying to export files
- External storage not detected by app
- Corrupted or lost data after file transfers
- Compatibility issues with iPhone X and newer models
Requested features
4 requests- Add support for landscape mode
- Improve video playback capabilities
- Allow for better file management and organization
- Provide option to change app language
Unvigintuple Calc
Not enough reviews yet to summarise bugs or requests.
In-app purchases
i
No in-app purchases
Unvigintuple Calc
No in-app purchases
