PhonoPaper vs Land Waves
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PhonoPaper
This app decodes images containing encoded sound, allowing you to play back audio embedded within visual patterns. You can also record your own sounds and convert them into these unique visual codes. It's designed for creative audio messaging and artistic expression.
- Decode images with encoded sound
- Create sound codes from recordings
- Offline decoding capability
- Analogue code for distortion resilience
- Real-time, hand-controlled playback
- Draw codes for unique sounds
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PhonoPaper is a camera app for playing pictures with encoded sound (PhonoPaper-codes). With this app, you can also create your own codes: 10 seconds of sound can be recorded from a microphone and converted into an image. [ Key features ] * PhonoPaper does not require access to the network for decoding; * PhonoPaper code is analogue, so it is not so sensitive to different types of the image distortion (bad camera, dark picture, wrinkled paper, etc.); at least you will hear the "silhouette" of the original sound; * code can be played in real-time with hand-controlled speed and direction; * code can be drawn by hand to get some unusual sounds. [ Examples of usage ] * voice messages (or pieces of music) on t-shirts, billboards, posters, postcards, goods; * audio labels for phonorecords; * audio examples in books; * secret messages; * art-experiments. [ How to use ] Launch the app, point the camera at the code (tap on the screen to focus if necessary) and smoothly scan the picture from left to right. The code should be parallel to the frame - try to keep the camera level. The black code markers (top and bottom) should fall entirely into the frame. If the application recognizes code markers, you will hear a sound. If you are unable to play the code smoothly, press the record button on the right side of the screen, this will enable automatic scanning.
Land Waves
This app generates sound waves from a 1D reaction-diffusion system simulation. It translates pixel brightness into audio frequencies, creating complex soundscapes from simple mathematical models found in nature.
- 1D reaction-diffusion system simulation
- Sonification of pixel brightness
- Generates complex soundscapes
- Mathematical models of natural fluid behaviors
- Translates pixel values to audio frequencies
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Raw sonification of a 1D reaction diffusion system. Reaction diffusion systems are mathematical representations of the behaviours of fluids that can be found in nature. A key characteristic of these systems is that the initial parameters are simple but the resulting process can be extremely complex. Here, each pixel brightness affects the brightness in the corresponding pixel line. Frequencies of the sound waves are the sonification of these pixel values.
Screenshots
Verdict
The clearest difference is review sentiment: PhonoPaper at 83% against Land Waves's 50%. PhonoPaper also leads on update cadence (every 4 months vs every 31 months) and rating (4.6 vs 4.3). Land Waves's advantage is iOS requirement (8.0 vs 12.0). On price, ads, 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.
PhonoPaper holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 45 and 12 respectively. Written reviews point the same way: 83% of PhonoPaper's written reviews are positive against 50% of Land Waves's.
PhonoPaper ships an update every 4 months, Land Waves every 31 months. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.
| Parameter | PhonoPaper | Land Waves |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (45 ratings) — better | 4.3 (12 ratings) |
| Positive reviews | 82.9% of reviews — better | 50.0% of reviews |
| Number of ratings | 45 — better | 12 |
| Update frequency | Every 4 months — better | Every 31 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Zolotov | Agoston Nagy |
Customer experience
PhonoPaper
Land Waves
In-app purchases
PhonoPaper
No in-app purchases
Land Waves
No in-app purchases








