SimpleSign vs DJI Fly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SimpleSign
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.
- 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
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Display full size characters and words in the full screen. Long sentence can slide through screen with animation. - Showing score or answer of quiz in party - Contact to the person that stands far from you - Substitution of signboard etc. It is useful in many situation. [Functional Description] - Appears one character on screen from 45 different characters. - Changing color of character and background. - Changing font type. - Long sentence can be displayed by one line or paragraph with sliding animation on/off.
DJI Fly
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.
- Intuitive flight interface
- Quick wireless content transfer
- Discover flight spots and projects
- Drone piloting tutorials
- Aerial photography tools
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DJI Fly is designed to help pilots fly drones with ease. (Compatible for DJI Lito X1、DJI Lito 1、DJI Avata 360、DJI Neo 2、DJI Mini 5 Pro、DJI Mavic 4 Pro, DJI Flip, DJI Air 3S, DJI NEO, DJI Mini 4 Pro, DJI Air 3, DJI Mavic 3 Pro, DJI Mini 2 SE, DJI Mini 3, DJI Mavic 3 Classic, DJI Avata, DJI Mini 3 Pro, DJI Mavic 3, DJI Mini SE, DJI Air 2S, DJI FPV, DJI Mini 2, Mavic Air 2, Mavic Mini, DJI Avata 2) What’s great about DJI Fly? · Flight Interface: Effortless Aerial Photography. · QuickTransfer: Wireless Content Transferred Swiftly to Your Phone. · Fly Spots & Works: Resources for Hassle-Free Creation. · DJI Academy: From Novice to Pro. We appreciate your feedback. All suggestions are welcome. · Feedback Email: support.fly@dji.com
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SimpleSign | DJI Fly |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 3.7 (4.9K ratings) |
| Positive reviews | 100.0% of reviews — better | 37.6% of reviews |
| Number of ratings | 4 | 4.9K — better |
| Update frequency | Every 9 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Best chart rank | — | #93 — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 17.5 | 13.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 1.4 GB |
| Age rating | 4+ | 4+ |
| Developer | idota limited | DJI |
Customer experience
SimpleSign
DJI Fly
Bugs and requests
SimpleSign
Not enough reviews yet to summarise bugs or requests.
DJI Fly
Reported bugs
5 issues- Unable to download videos
- Incorrect altitude readings
- Frequent app crashes
- Issues with unlocking restricted areas
- Compatibility problems with newer devices
Requested features
5 requests- Add manual camera controls
- Implement active tracking
- Allow customizable flight modes
- Improve editing capabilities
- Add offline map support
In-app purchases
SimpleSign
No in-app purchases
DJI Fly
No in-app purchases
