# On vs FillerBase

The clearest difference is in-app purchases: On at none against FillerBase's 2. On also leads on update cadence (every 5 days vs every 2 months). FillerBase's advantage is iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. FillerBase sells 2 in-app purchases, starting at $3.99 per month. On asks for nothing beyond the download.

On ships an update every 5 days, FillerBase every 2 months. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | On | FillerBase |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Size | 408 MB | 31 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Luana Thomas](https://appshunter.io/developer/1688608260) | [Strawti Tecnologia e Inovacao LTDA](https://appshunter.io/developer/1610793062) |

## What reviewers say

### On

[App page](https://appshunter.io/ios/app/on-key/id6470926583)

**Features:** macOS Compatibility

**In-app purchases:** none


### FillerBase

[App page](https://appshunter.io/ios/app/fillerbase/id6747683981)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plano Premium Mensal | $3.99 | per month |
| Plano Premium Anual | $39.99 | per year |


## Frequently asked questions

### Is On free?

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

### Is FillerBase free?

FillerBase is free to download, with in-app purchases available.

### Do On or FillerBase have ads?

Neither On nor FillerBase shows ads.

### Which is updated more often, On or FillerBase?

On ships an update every 5 days, and FillerBase every 2 months. Most recently, On was updated on October 14, 2026 and FillerBase on October 5, 2026.

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