# SPIE2Info vs eSign App

The clearest difference is in-app purchases: SPIE2Info at none against eSign App's 9. SPIE2Info also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). eSign App's advantage is update cadence (every 3 weeks vs every 4 months) and chart position (#78 vs unranked). On price and ads there is nothing between them.

Both are free to download. eSign App sells 9 in-app purchases, starting at $4.99 per 7 days. SPIE2Info asks for nothing beyond the download.

SPIE2Info ships an update every 4 months, eSign App every 3 weeks. The most recent releases landed on October 4, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | SPIE2Info | eSign App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (1.5K ratings)](https://appshunter.io/ios/app/esign-app-sign-pdf-documents/id6446249178/reviews)** |
| Number of ratings | — | **1.5K** |
| Positive reviews | — | 85.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Subscription |
| Best chart rank | — | **#78** |
| Size | 155 MB | 110 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Any2Info B.V.](https://appshunter.io/developer/965115812) | [Municorn Limited](https://appshunter.io/developer/380984285) |

## What reviewers say

### SPIE2Info

[App page](https://appshunter.io/ios/app/spie2info/id1086581198)

**Features:** macOS Compatibility

**In-app purchases:** none


### eSign App

[App page](https://appshunter.io/ios/app/esign-app-sign-pdf-documents/id6446249178)

**Currently charting:** #78 Top Grossing · Business (US App Store)

Transform your device into a powerful tool for signing PDF documents and other file types. Easily import, scan, sign, and share documents locally, or send them to others for their signatures. Integrates with popular cloud services for seamless workflow.

**Highlights:** Sign documents anywhere, Fill and edit documents, Create custom e-signatures, Import documents, Send documents for signing, Cloud service integration

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium features | $4.99 | per 7 days |
| Premium features | $5.99 | per 7 days |
| Premium features | $9.99 | per month |
| Premium features | $9.99 | per 7 days |
| Premium features | $14.99 | per month |
| The Documents Bundle 1 week | $14.99 | per 7 days |
| The Documents Bundle 1 month | $39.99 | per month |
| Electronic Signature Creator | $49.99 | per year |
| Premium features | $69.99 | per year |

**What reviewers like**

- 🚀 Easy to use
- 👍 User-friendly interface
- 🚀 Efficient signing process
- 🚀 Convenient for on-the-go document signing
- 🔒 Secure document handling

**What reviewers complain about**

- 🐛 Difficulty canceling subscription
- 🐛 Unexpected charges/subscription renewals
- 🐛 Limited functionality in free version
- 🐛 Unresponsive customer support

**Reported bugs**

- App crashes when uploading certain file types
- Syncing issues between devices

**Requested features**

- Option to easily cancel subscription
- More customization options for signatures
- Ability to add dates and annotations to signed documents


## Frequently asked questions

### Is SPIE2Info free?

SPIE2Info is free to download, with no in-app purchases.

### Is eSign App free?

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

### Do SPIE2Info or eSign App have ads?

Neither SPIE2Info nor eSign App shows ads.

### Which is updated more often, SPIE2Info or eSign App?

SPIE2Info ships an update every 4 months, and eSign App every 3 weeks. Most recently, SPIE2Info was updated on October 4, 2026 and eSign App on November 7, 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.*