# SimpleSign vs DJI Fly

The clearest difference is review sentiment: SimpleSign at 100% against DJI Fly's 38%. SimpleSign also leads on rating (5.0 vs 3.7). DJI Fly's advantage is ads (none vs shown) and update cadence (monthly vs every 9 months). On price, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SimpleSign holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: DJI Fly has 4.9K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of SimpleSign's written reviews are positive against 38% of DJI Fly's.

SimpleSign ships an update every 9 months, DJI Fly monthly. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | SimpleSign | DJI Fly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/simplesign/id642379481/reviews)** | [3.7 (4.9K ratings)](https://appshunter.io/ios/app/dji-fly/id1479649251/reviews) |
| Number of ratings | 4 | **4.9K** |
| Positive reviews | **100.0% of reviews** | 37.6% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | Ad-supported | Ad-supported |
| Best chart rank | — | **#88** |
| Size | 4 MB | 1.4 GB |
| Requires iOS | 17.5 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [idota limited](https://appshunter.io/developer/463418304) | [DJI](https://appshunter.io/developer/599957686) |

## What reviewers say

### SimpleSign

[App page](https://appshunter.io/ios/app/simplesign/id642379481)

This app displays large characters and words full screen with customizable fonts and colors. It supports sliding animations for long sentences, making it useful for various situations like displaying quiz answers or messages from a distance.

**Highlights:** Full-screen character and word display, Customizable font types and colors, Sliding animation for long sentences, Useful for quizzes and distant communication, Acts as a digital signboard substitute

**In-app purchases:** none


### DJI Fly

[App page](https://appshunter.io/ios/app/dji-fly/id1479649251)

**Currently charting:** #88 Top Free · Photo & Video (US App Store)

This app simplifies drone piloting with an intuitive interface for aerial photography. It offers quick wireless content transfer to your phone and provides resources for discovering flight locations and learning drone skills. Designed for both beginners and experienced pilots.

**Highlights:** Intuitive flight interface, Quick wireless content transfer, Discover flight spots and projects, Drone piloting tutorials, Aerial photography tools

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 👍 User-friendly interface
- 🚀 Fast GPS connection
- 👍 Cinematic footage
- 🚀 Stable flight performance

**What reviewers complain about**

- 🐛 Quick transfer not working
- 🐛 App crashes during editing
- 🔋 Phone overheating issues
- 🐛 Unreliable connection
- 🐛 Buggy firmware updates

**Reported bugs**

- Unable to download videos
- Incorrect altitude readings
- Frequent app crashes
- Issues with unlocking restricted areas
- Compatibility problems with newer devices

**Requested features**

- Add manual camera controls
- Implement active tracking
- Allow customizable flight modes
- Improve editing capabilities
- Add offline map support


## Frequently asked questions

### Is SimpleSign free?

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

### Is DJI Fly free?

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

### Which has better reviews, SimpleSign or DJI Fly?

SimpleSign is rated higher. SimpleSign averages 5.0 out of 5 from 4 ratings, while DJI Fly averages 3.7 from 4.9K ratings.

### Do SimpleSign or DJI Fly have ads?

SimpleSign shows ads; DJI Fly does not.

### Which is updated more often, SimpleSign or DJI Fly?

SimpleSign ships an update every 9 months, and DJI Fly monthly. Most recently, SimpleSign was updated on November 6, 2026 and DJI Fly on November 11, 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.*