# Electronic Signature vs FocusFuel

The clearest difference is update cadence: FocusFuel at every 3 weeks against Electronic Signature's every 4 months. FocusFuel also leads on iOS requirement (15.1 vs 17.6). 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.

Electronic Signature ships an update every 4 months, FocusFuel every 3 weeks. The most recent releases landed on October 23, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Electronic Signature | FocusFuel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (69 ratings)](https://appshunter.io/ios/app/electronic-signature/id1469103649/reviews)** | — |
| Number of ratings | **69** | — |
| Positive reviews | 75.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 29 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kazuya Fujita](https://appshunter.io/developer/1358322690) | [JUNHAN LEE](https://appshunter.io/developer/1880335374) |

## What reviewers say

### Electronic Signature

[App page](https://appshunter.io/ios/app/electronic-signature/id1469103649)

Easily create and save handwritten signatures as images or for copy-pasting. Customize pen color, thickness, and line design. Includes undo/redo functionality and scaling options.

**Highlights:** Handwritten signature creation, Save as image, Copy to clipboard, Pen color selection, Pen thickness adjustment, Undo/Redo functionality

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Convenient for signing
- 👍 Good for practice/fun
- 👍 Nice for creating signatures
- 👍 Quick and simple

**What reviewers complain about**

- 👎 Limited color options
- 👎 Background is white (not transparent)
- 👎 Signature area is too small
- 👎 Cannot rotate screen for more space
- 👎 Ads can be intrusive

**Reported bugs**

- App prompts for review before use
- Cannot do anything (potential bug for some users)
- Full erase immediately shows ads

**Requested features**

- PNG with transparent background output
- Vector drawing capability
- More color options
- Ability to type signature with font options
- Horizontal rotation for signature area


### FocusFuel

[App page](https://appshunter.io/ios/app/focusfuel-routine-timer/id6759717885)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Electronic Signature free?

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

### Is FocusFuel free?

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

### Do Electronic Signature or FocusFuel have ads?

Both Electronic Signature and FocusFuel show ads.

### Which is updated more often, Electronic Signature or FocusFuel?

Electronic Signature ships an update every 4 months, and FocusFuel every 3 weeks. Most recently, Electronic Signature was updated on October 23, 2026 and FocusFuel on October 9, 2026.

---

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