# iSign vs ShiftFlow

The clearest difference is ratings volume: ShiftFlow at 2.4K against iSign's 1. ShiftFlow also leads on device support (4 vs 2) and iOS requirement (15.0 vs 18.0). iSign's advantage is rating (5.0 vs 4.8) and review sentiment (100% vs 89%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. iSign sells 9 in-app purchases, starting at $0.99 per month and ShiftFlow sells 10 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

iSign holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ShiftFlow has 2.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of iSign's written reviews are positive against 89% of ShiftFlow's.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on November 12, 2026.

## The numbers

| Metric | iSign | ShiftFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/isign-pdf-scanner-ai-editor/id6444390217/reviews)** | [4.8 (2.4K ratings)](https://appshunter.io/ios/app/shiftflow-track-team-hours/id6466682008/reviews) |
| Number of ratings | 1 | **2.4K** |
| Positive reviews | **100.0% of reviews** | 88.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 98 MB | 186 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Bruno Wide](https://appshunter.io/developer/1262013609) | [Pixnbit Inc.](https://appshunter.io/developer/930234929) |

## What reviewers say

### iSign

[App page](https://appshunter.io/ios/app/isign-pdf-scanner-ai-editor/id6444390217)

Transform documents into searchable, signable PDFs using your phone's camera. Features include instant scanning, editing, text recognition, and AI-powered summaries. Your data remains private on your device.

**Highlights:** Instant document scanning with edge detection, Add signatures and annotations, OCR text recognition for searchability, AI-powered document summarization, Private, on-device storage

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scanner Pro - Monthly Promo | $0.99 | per month |
| Premium Monthly | $4.59 | per month |
| Premium Weekly | $4.99 | per 7 days |
| Scanner Pro - Yearly Promo | $9.99 | per year |
| Scanner Pro - Yearly | $19.99 | per year |
| Premium Yearly | $33.99 | per year |
| Premium Yearly | $36.99 | per year |
| Premium Yearly | $40.99 | per year |
| Premium Yearly | $99.99 | per year |


### ShiftFlow

[App page](https://appshunter.io/ios/app/shiftflow-track-team-hours/id6466682008)

This app simplifies team time tracking and scheduling with features like real-time clock-ins, GPS verification, and smart shift planning. It offers easy timesheet exports and team communication tools to help businesses save time and improve efficiency.

**Highlights:** Real-time clock-ins with GPS verification, Smart shift scheduling and availability management, One-click timesheet exports (CSV/PDF), Team chat and instant communication, Job code and expense tracking, Time off management

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Personal Weekly | $1.99 | per 7 days |
| Personal Single User Monthly | $4.99 | per month |
| Team Monthly | $19.99 | per month |
| Team Monthly Welcome Offer | $19.99 | per month |
| Up to 5 Users Monthly | $24.99 | per month |
| Up to 10 Users Monthly | $49.99 | per month |
| Personal Yearly | $50.00 | per year |
| Personal Single User Yearly | $50.00 | per year |
| Team Annual Mid Trial Offer | $199.99 | per year |
| Team Annual | $199.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient time tracking
- 🔒 Secure with GPS and selfie check-in
- 💰 Helpful for payroll and invoicing
- 🤝 Enhances team collaboration and accountability

**What reviewers complain about**

- 🔒 Paywall after trial period
- 🐛 Occasional login and account issues
- 🔍 Lacking some advanced features (e.g. scheduling)

**Reported bugs**

- Login issues after extended use
- Discrepancies in estimated pay calculations

**Requested features**

- Calendar feature for scheduling shifts
- Mileage tracking functionality
- Improved group management and sharing


## Frequently asked questions

### Is iSign free?

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

### Is ShiftFlow free?

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

### Which has better reviews, iSign or ShiftFlow?

iSign is rated higher. iSign averages 5.0 out of 5 from 1 ratings, while ShiftFlow averages 4.8 from 2.4K ratings.

### Do iSign or ShiftFlow have ads?

Neither iSign nor ShiftFlow shows ads.

### Which is updated more often, iSign or ShiftFlow?

iSign ships an update every 3 weeks, and ShiftFlow every 3 weeks. Most recently, iSign was updated on November 12, 2026 and ShiftFlow on November 12, 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.*