# Sign.Plus vs Cali Pro

The clearest difference is in-app purchases: Cali Pro at none against Sign.Plus's 4. Cali Pro also leads on update cadence (every 10 days vs every 3 weeks). Sign.Plus's advantage is iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

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

Sign.Plus ships an update every 3 weeks, Cali Pro every 10 days. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Sign.Plus | Cali Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (288 ratings)](https://appshunter.io/ios/app/signplus-sign-pdf-documents/id1478723637/reviews)** | — |
| Number of ratings | **288** | — |
| Positive reviews | 86.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 137 MB | 19 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Alohi](https://appshunter.io/developer/1172555270) | [I80 Tech LLC](https://appshunter.io/developer/1866826695) |

## 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


### Cali Pro

[App page](https://appshunter.io/ios/app/cali-pro/id6764345396)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sign.Plus free?

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

### Is Cali Pro free?

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

### Do Sign.Plus or Cali Pro have ads?

Neither Sign.Plus nor Cali Pro shows ads.

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

Sign.Plus ships an update every 3 weeks, and Cali Pro every 10 days. Most recently, Sign.Plus was updated on October 16, 2026 and Cali Pro 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.*