# Sign.Plus vs AppointFlow

The clearest difference is in-app purchases: AppointFlow at none against Sign.Plus's 4. AppointFlow also leads on iOS requirement (12.2 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sign.Plus sells 4 one-off in-app purchases. AppointFlow asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 29, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Sign.Plus | AppointFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (281 ratings)](https://appshunter.io/ios/app/signplus-sign-pdf-documents/id1478723637/reviews)** | — |
| Number of ratings | **281** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 129 MB | 226 MB |
| Requires iOS | 15.0 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alohi](https://appshunter.io/developer/1172555270) | [Mert Turkman](https://appshunter.io/developer/1893445326) |

## What reviewers say

### Sign.Plus

[App page](https://appshunter.io/ios/app/signplus-sign-pdf-documents/id1478723637)

This app provides a secure and legally-binding electronic signature solution for signing documents on mobile devices. It allows users to fill and sign PDFs, scan paper documents, and send documents to others for signature with tamper-proof audit trails.

**Highlights:** Fill and sign documents, Send documents for signature, Tamper-proof audit trails, Legally-binding electronic signatures, Paper scanning to digital, Data encryption

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Personal Plan (One Month) | $14.99 | one-time |
| Premium Plan (One Month) | $29.99 | one-time |
| Personal Plan (One Year) | $119.99 | one-time |
| Professional Plan (One Year) | $239.99 | one-time |

**What reviewers like**

- 👍 Easy to use interface
- 🚀 Efficient document signing
- 🔒 Secure document handling
- 💡 Scans everything easily
- 👍 Convenient for quick signatures

**What reviewers complain about**

- 🐛 Horrible app interface
- 🐛 Difficult to use on phone
- 🐛 Bait and switch tactics
- 🐛 Tricky to unsubscribe
- 🐛 App not working

**Reported bugs**

- App not working
- Freezes occasionally
- Support obstructing work

**Requested features**

- Ability to send documents out
- Improved phone interface


### AppointFlow

[App page](https://appshunter.io/ios/app/appointflow/id6762227618)

**In-app purchases:** none


## Frequently asked questions

### Is Sign.Plus free?

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

### Is AppointFlow free?

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

### Do Sign.Plus or AppointFlow have ads?

Neither Sign.Plus nor AppointFlow shows ads.

### Which is updated more often, Sign.Plus or AppointFlow?

Sign.Plus ships an update every 3 weeks, and AppointFlow every 3 weeks. Most recently, Sign.Plus was updated on September 29, 2026 and AppointFlow on September 14, 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.*