# S.i vs UMBER

The clearest difference is update cadence: UMBER at every 12 months against S.i's every 48 months. UMBER also leads on iOS requirement (8.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

S.i ships an update every 48 months, UMBER every 12 months. The most recent releases landed on September 30, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | S.i | UMBER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 12 months** |
| Size | 3 MB | 4 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TATSUHIRO INOUE](https://appshunter.io/developer/1610301721) | [Cynd Co.,Ltd.](https://appshunter.io/developer/512501162) |

## What reviewers say

### S.i

[App page](https://appshunter.io/ios/app/si/id1610301719)

**In-app purchases:** none


### UMBER

[App page](https://appshunter.io/ios/app/umber/id1612440053)

**In-app purchases:** none


## Frequently asked questions

### Is S.i free?

S.i is free to download, with no in-app purchases.

### Is UMBER free?

UMBER is free to download, with no in-app purchases.

### Do S.i or UMBER have ads?

Neither S.i nor UMBER shows ads.

### Which is updated more often, S.i or UMBER?

S.i ships an update every 48 months, and UMBER every 12 months. Most recently, S.i was updated on September 30, 2026 and UMBER on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*