OTA Tools vs Maskduck
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
OTA Tools
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Through the fitshow OTA mobile application, users can upgrade smart hardware, such as treadmill, rowing machine, aero bike, and emergency machine. The user can use the OTA tool to modify the firmware code underlying hardware and implement the iterative upgrade of smart products to improve product experience.
Maskduck
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Maskduck is the fastest way to hide sensitive information in your screenshots and photos before you share them. Smart detection finds private info for you โ then a single tap covers it up. Everything happens on your device. Your photos never leave your phone. WHAT IT MASKS โข Phone numbers โข Email addresses โข Credit and debit card numbers โข ID and document numbers โข Bank account numbers โข IP addresses โข License plates โข Long numeric strings that look private HOW IT WORKS 1. Pick a photo from your library. 2. Maskduck scans the text and highlights anything sensitive. 3. Tap to hide it โ or draw your own mask with the brush or rectangle tool. 4. Save or share. That's it. FOUR MASK STYLES โข Solid โ clean black bars โข Pixelate โ classic mosaic look โข Blur โ soft gaussian blur โข Hide โ cover with a matching background BUILT FOR PRIVACY โข 100% on-device processing โ nothing is uploaded โข No account, no sign-in, no ads, no tracking โข Works offline โข Only asks for the photo permissions it actually needs WHO IT'S FOR โข Anyone sharing receipts, tickets, or order confirmations โข Sellers posting product photos with personal info in the background โข Developers and designers sharing screenshots with tokens or emails โข Journalists and researchers redacting documents โข Anyone who values privacy before hitting "send" Stop cropping awkwardly or editing in five different apps. Maskduck handles it in seconds.
Screenshots
Verdict
The clearest difference is in-app purchases: OTA Tools at none against Maskduck's 1. OTA Tools also leads on device support (3 vs 1). Maskduck's advantage is update cadence (weekly vs every 13 months). On price, ads and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Maskduck sells 1 one-off in-app purchase. OTA Tools asks for nothing beyond the download.
OTA Tools ships an update every 13 months, Maskduck weekly. The most recent releases landed on October 5, 2026 and October 19, 2026 respectively.
| Parameter | OTA Tools | Maskduck |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 13 months | Weekly โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 15.6 โ better | 16.0 |
| Further details โ not scored | ||
| Size | 27 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | Fitshow (Xiamen) Infomation Technology Co., Ltd. | ้จ็ ๆจ |
In-app purchases
OTA Tools
No in-app purchases
Maskduck
- Remove Watermark$0.99









