# TST FLY vs ESigner.App

The clearest difference is in-app purchases: TST FLY at none against ESigner.App's 2. TST FLY also leads on update cadence (every 3 days vs weekly) and iOS requirement (9.0 vs 16). On price, ads and device support there is nothing between them.

Both are free to download. ESigner.App sells 2 in-app purchases, starting at $4.99 per 7 days. TST FLY asks for nothing beyond the download.

TST FLY ships an update every 3 days, ESigner.App weekly. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | TST FLY | ESigner.App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Size | 4 MB | 19 MB |
| Requires iOS | **9.0** | 16 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SHENZHEN TOUCHSTONE TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1441759734) | [Thomas Clark](https://appshunter.io/developer/1842128870) |

## What reviewers say

### TST FLY

[App page](https://appshunter.io/ios/app/tst-fly/id1441759735)

**Features:** macOS Compatibility

**In-app purchases:** none


### ESigner.App

[App page](https://appshunter.io/ios/app/esignerapp/id6753013885)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $4.99 | per 7 days |
| Sign Smarter, Work Faster | $4.99 | per 7 days |


## Frequently asked questions

### Is TST FLY free?

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

### Is ESigner.App free?

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

### Do TST FLY or ESigner.App have ads?

Neither TST FLY nor ESigner.App shows ads.

### Which is updated more often, TST FLY or ESigner.App?

TST FLY ships an update every 3 days, and ESigner.App weekly. Most recently, TST FLY was updated on October 13, 2026 and ESigner.App on October 15, 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.*