DreamNight vs CorroScan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DreamNight
Transform your device into a customizable night light with falling star animations. Adjust brightness and pair it with relaxing sleep sounds. Set a timer for automatic device sleep.
- Customizable night light colors
- Falling star and moon animations
- Adjustable brightness
- Relaxing sleep sounds
- Automatic sleep timer
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This application allows you to turn your device into a night light. It displays the color of your choice on the screen with an animation of falling stars. By adjusting the brightness of your device, you can control the brightness of your night light. The app also provides relaxing sounds that you can play while the night light is on. A timer can be set too to automatically put your device to sleep after a while. A subscription is required to use the app. Terms of Service: https://yc-apps.github.io/terms-of-service Privacy Policy: https://yc-apps.github.io/privacy-policy
CorroScan
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Point. Detect. Measure. CorroScan finds corrosion with on-device AI and measures its true area with LiDAR — geotagged, logged, and PDF-ready in seconds.CorroScan turns your iPhone into a corrosion inspection instrument. Point the camera at rusted steel: on-device AI outlines every corrosion patch live, and the LiDAR scanner measures its true surface area — no reference markers, no tape measures, no guesswork. DETECT — a corrosion-trained neural network segments patches in real time, with stable outlines that survive camera motion. Distance, angle and light guidance keep every capture reliable. MEASURE — LiDAR depth fused with the camera yields genuine surface area (cm²/m²) and span for each patch, with a stated tolerance. Multiple patches are measured individually and in total. LOCATE — every scan is geotagged with a site name, browsable on a map and in a searchable, filterable log. REPORT — generate clean A4 PDF defect reports with photo, outlines, measurements, GPS and capture conditions — ready to send from the field. FREE — 100 scans with full detection and measurement. Everything stays on your iPhone. CORROSCAN PRO (auto-renewable subscription, monthly or annual) — unlimited scans and PDF defect reports. 100% on-device: no account, no cloud, your data never leaves your iPhone. TEAMS — inspection companies equip their crews with organization seats, adding cloud sync and a web dashboard managed by the company. REQUIRES a LiDAR-equipped iPhone (iPhone 12 Pro or later Pro models). No ads, no tracking, no third-party analytics. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://corroscan.ai/privacy.html
Screenshots
Verdict
The clearest difference is update cadence: CorroScan at every 2 days against DreamNight's every 2 months. DreamNight's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases 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. DreamNight sells 3 in-app purchases, starting at $4.99 per 7 days and CorroScan sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.
DreamNight ships an update every 2 months, CorroScan every 2 days. Both last shipped on October 24, 2026.
| Parameter | DreamNight | CorroScan |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (107 ratings) — better | — |
| Number of ratings | 107 — better | — |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Yohan Cassaigne | OFO Tech |
In-app purchases
DreamNight
- Weekly Subscription3 Days trial$4.997 Days
- Yearly Subscription$24.991 Year
- Ad-free Version$1.99
CorroScan
- CorroScan Pro$14.991 Month
- CorroScan Pro (Annual)$149.001 Year
Questions
Is DreamNight free?
Is CorroScan free?
Do DreamNight or CorroScan have ads?
Which is updated more often, DreamNight or CorroScan?
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