Robot72 vs +Frames
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Robot72
Decode and send slow-scan television (SSTV) images from ham radio or the International Space Station. View ISS passes, save and share your creations, and even fix distorted images. Offers a free version with limitations and a one-time purchase Pro option.
- Decode SSTV audio to images
- Send photos via SSTV
- View ISS pass predictions
- Support for 31 SSTV modes
- Image correction and history
- Optional Pro version with WAV export
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Robot72 turns pictures into slow-scan television (SSTV) audio, and SSTV audio back into pictures. Decode images from ham radio, from the International Space Station or from a friend's phone, and send your own photos to any SSTV receiver. RECEIVE Tap Listen and hold your iPhone near the radio's speaker. Robot72 reads the VIS header, picks the mode and draws the picture line by line. To decode a WAV recording, tap File. Reception keeps going when the screen is locked, with progress in a Live Activity. SEND Pick a photo, choose the mode your contact uses, add a caption if you like, and play it through the speaker or a cable into your radio. Pro also exports the audio as a WAV file. ISS PASSES Enter your location or use the current one, and Robot72 lists ISS passes for the next 48 hours with peak elevation and direction. Turn on reminders to get a notification a few minutes before each pass. Predictions are calculated on your iPhone from CelesTrak orbital data; your location is not uploaded. 31 MODES Robot 8/12/24/36 BW, Robot 12/24/36/72 Color, PD 50/90/120/160/180/240/290, Martin 1–4, Scottie 1/2/3/4/DX, Wraase SC2 30/60/120/180, Pasokon P3/P5/P7. HISTORY AND FIXES Every picture you receive or send is kept in History with its mode and time. Fix a slanted or shifted image, then save or share it. History has no limit. FREE AND PRO Any mode can be decoded and viewed for free. Robot 36 and Robot 72 can be saved, shared and sent for free, with a small watermark. To save or send one picture in another mode, watch a short video, up to 3 times a day. Robot72 Pro is a one-time purchase that unlocks every mode, removes the watermark and adds WAV export. No subscription. PRIVACY Audio and pictures are processed on your iPhone. Robot72 sends anonymous usage events that are not linked to you, and does not track you across apps. Rewarded videos are non-personalized; there are no banner or pop-up ads.
+Frames
This app helps astrophotographers plan their shots by providing a sky atlas, equipment-specific target recommendations, and field-of-view previews. It also offers an AI assistant for personalized advice and project tracking for deep-sky objects.
- Sky atlas with millions of stars and deep-sky objects
- Ranked target recommendations based on equipment and sky conditions
- True field-of-view preview for cameras and eyepieces
- Mosaic planning up to 4x4
- Project tracking for exposures and filters
- AI assistant for personalized astrophotography advice
- Augmented Reality (AR) mode for target location
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+Frames plans your night: what to shoot, when, and how. THE ATLAS The whole sky in your pocket: stars down to magnitude 21 when you zoom in, 8,800 deep-sky objects, Sun, Moon and planets, asteroids, comets and satellites moving live. Real astrophotos lie on the map, galaxies are drawn with their position angle, and every object opens a card with the numbers that matter tonight. TONIGHT'S TARGETS, RANKED The Night tab scores every object for YOUR equipment, YOUR sky and YOUR horizon: altitude, field-of-view fit, filter fit, moon, usable dark window. Grade A to E, the best target for tonight is always on top. FRAME IT Field-of-view preview for your camera or eyepiece. Rotate the frame, plan mosaics up to 4x4, check the sampling, swap camera and telescope while the frame stays on screen. Compare up to 10 frames at once with +FOV. An 8-sector horizon profile per site keeps trees and rooftops out of your plans. PROJECTS Track every target over nights: hours target per filter, subs, exposure, gain, location. Camera angle and position are saved with the project. Export the plan in ASIAIR format or as a NINA target set. Observing log for stars, lucky imaging log for Sun, Moon and planets. ASTRO BUDDY Your assistant knows the whole app, your gear, your site and tonight's sky. It does the work from the chat: creates projects, logs your nights, saves gear and locations, opens any screen. Ask what to shoot, which filter fits, how long to expose. Name a device and it looks up the specs and saves it. New here? Type "tour". AND MORE Weather on every location: clouds, dew, rain and wind for the next three nights. Calendar with moon phases, moon-free nights, eclipses and showpiece targets at their best, searchable up to 2050. Plate solving puts your own photos on the atlas. AR mode shows where a target sits in your real sky. Red night mode protects your dark adaptation. Works offline; no account, your data stays on your device (private iCloud backup). +Frames Lite is free. Premium unlocks the whole app. Languages: EN, DE, FR, ES, IT, PT, JA, KO, ZH, UK, RU, PL, TR. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ App terms: https://plus-frames.com/terms.html Privacy Policy: https://plus-frames.com/privacy.html
Screenshots
Verdict
The clearest difference is ads: +Frames at none against Robot72's shown. Robot72's advantage is ratings volume (14 vs 1). On price, rating, update cadence 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. Robot72 sells 2 one-off in-app purchases and +Frames sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for Robot72 against 5.0 for +Frames. That said, the two scores are not equally well evidenced: Robot72 has 14 ratings behind it against 1, so its average is the more settled of the two.
Robot72 ships an update every 3 weeks, +Frames every 2 weeks. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.
| Parameter | Robot72 | +Frames |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (14 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 14 — better | 1 |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 18.2 | 18.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 748 MB |
| Age rating | 4+ | 4+ |
| Developer | 晨阳 段 | LEVIN GIDEON MERANER |
Customer experience
Robot72
+Frames
In-app purchases
Robot72
- Pro — Special Offer$2.99
- Robot72 Pro$4.99
+Frames
- Monthly$3.991 Month
- Yearly$29.991 Year









