# Sign.Plus vs Invoice Ready

The clearest difference is ratings volume: Sign.Plus at 288 against Invoice Ready's 21. Invoice Ready's advantage is review sentiment (100% vs 86%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Sign.Plus sells 4 one-off in-app purchases and Invoice Ready sells 5 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Sign.Plus against 4.8 for Invoice Ready. That said, the two scores are not equally well evidenced: Sign.Plus has 288 ratings behind it against 21, so its average is the more settled of the two. Written reviews are what separate them: 86% of Sign.Plus's written reviews are positive against 100% of Invoice Ready's.

Sign.Plus ships an update every 3 weeks, Invoice Ready fortnightly. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Sign.Plus | Invoice Ready |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (288 ratings)](https://appshunter.io/ios/app/signplus-sign-pdf-documents/id1478723637/reviews) | [4.8 (21 ratings)](https://appshunter.io/ios/app/invoice-ready-invoice-maker/id6749820182/reviews) |
| Number of ratings | **288** | 21 |
| Positive reviews | 86.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 137 MB | 76 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alohi](https://appshunter.io/developer/1172555270) | [Omega Lab Inc](https://appshunter.io/developer/1832288632) |

## 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


### Invoice Ready

[App page](https://appshunter.io/ios/app/invoice-ready-invoice-maker/id6749820182)

Create, send, and manage professional invoices and estimates with ease. This app offers customizable templates, payment tracking, and client management to streamline your business finances and save you time.

**Highlights:** Create and send invoices quickly, Deliver invoices via email or chat, Professional invoice templates, Track incoming and overdue payments, Store client information, Attach images to estimates

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Invoice Access | $5.99 | per 7 days |
| Weekly Pro Invoice Access | $7.99 | per 7 days |
| Monthly Pro Invoice Access | $9.99 | per month |
| Monthly Pro Invoice Access | $14.99 | per month |
| Yearly Pro Invoice Access | $99.99 | per year |


## Frequently asked questions

### Is Sign.Plus free?

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

### Is Invoice Ready free?

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

### Which has better reviews, Sign.Plus or Invoice Ready?

Sign.Plus and Invoice Ready are both rated 4.8 out of 5 on the App Store, from 288 and 21 ratings respectively.

### Do Sign.Plus or Invoice Ready have ads?

Neither Sign.Plus nor Invoice Ready shows ads.

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

Sign.Plus ships an update every 3 weeks, and Invoice Ready fortnightly. Most recently, Sign.Plus was updated on October 16, 2026 and Invoice Ready on October 9, 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.*