Ruyi Camera vs Chronos Lens
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruyi Camera
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Add watermarks, borders, and handwritten signatures to photos and videos of life, travel, sports, and work. Add watermarks directly while capturing photos or recording videos. The watermark comes with real time and location to prevent tampering! The screen can be used as a selfie fill light or an independent fill light. A super easy-to-use watermark photo app, with real-time updated watermark preview, and you can customize the content, position, color, and size of the watermark. At work, it is a common choice for workers from all walks of life; in life, you can also record every bit of life anytime and anywhere. [Applicable scenarios] Work quality records, attendance punching, property work records, construction project management, field photography, brand promotion, on-site evidence collection, meeting records, duty patrols, travel punching, marketing, sports records, game scoring, tea brewing temperature, scenic spot ratings, etc. [Rich watermark types] Time, location, weather, altitude, latitude and longitude, countdown, lunar calendar, solar terms, scores, itinerary, etc. [Professional watermark templates] - Attendance punching: real time and location cannot be tampered with. - Work record photography: Exclusive templates for work records such as work clocking in, property management, construction project management, duty records, brand promotion, meeting records, marketing, etc. - Real-time update: The watermark can be automatically updated to real-time date, location, weather and other information, and the latitude, longitude, altitude, and speed can also be recorded. The watermark preview is also updated in real time. - Custom watermark content: You can freely switch and edit the watermark content options, and adjust the watermark position, color, size, etc. [Subscription] Subscribe to have unlimited access to VIP member exclusive watermarks as well. • Subscription length: monthly, half-yearly, yearly • Your payment will be charged to your iTunes Account as soon as you confirm your purchase. • You can manage your subscriptions and turn off auto-renewal from your Account Settings after the purchase. • Your subscription will renew automatically, unless you turn off auto-renew at least 24 hours before the end of the current period. • The cost of renewal will be charged to your account in the 24 hours prior to the end of the current period. • When canceling a subscription, your subscription will stay active until the end of the period. Auto-renewal will be disabled, but the current subscription will not be refunded. • Any unused portion of a free trial period, if offered, will be forfeited when purchasing a subscription. [Terms of Use] Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.freeprivacypolicy.com/live/fcbd2098-c677-48e0-956f-07937f2e982f
Chronos Lens
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Chronos Lens is a privacy-first watermark camera for iPhone. Capture photos and videos with live overlays—time, weekday, place, weather, and temperature—or add watermarks to existing photos and videos from your library using their original metadata. FEATURES • Live watermarks while shooting photos and videos • Add watermarks to existing library media • Reads capture time and GPS from EXIF / video metadata • Weather and temperature via Apple WeatherKit • Customizable templates: fields, position, color, size, opacity, and background style • Built-in templates plus create your own • Chinese and English UI that follows system language • All processing stays on your device—no account required HOW IT WORKS 1. Allow Camera, Microphone (for video), Location, and Photos access when prompted 2. Choose a template on the Templates tab 3. Shoot from Camera, or import media from Album Watermark 4. Save watermarked results to your Photos library PRIVACY Location, weather, photos, and videos are used only on-device to generate watermarks. We do not upload your media or location to our servers. Weather data is provided by Apple Weather and is subject to Apple’s terms. Weather may be unavailable without network/location access, or for older media outside WeatherKit’s historical range. In those cases, weather fields are hidden and other watermark fields still work. Shiyu Camera requires iOS 17 or later.
Screenshots
Verdict
The clearest difference is in-app purchases: Chronos Lens at none against Ruyi Camera's 3. Ruyi Camera's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads, device support and iOS requirement 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. Ruyi Camera sells 3 in-app purchases, starting at $0.49 per month. Chronos Lens asks for nothing beyond the download.
Ruyi Camera ships an update every 3 weeks, Chronos Lens every 6 weeks. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.
| Parameter | Ruyi Camera | Chronos Lens |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | 泽海 黄 | 鹏 傅 |
In-app purchases
Ruyi Camera
- Monthly Subscription7 Days trial$0.491 Month
- Half Yearly Subscription7 Days trial$2.696 Months
- Yearly Subscription7 Days trial$4.991 Year
Chronos Lens
No in-app purchases








