Scale Ratio vs Model Paints
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scale Ratio
Easily convert distances between any scales for projects like architecture and model building. Input your measurements and desired scale to instantly calculate scaled distances.
- Convert distances between any scales
- Supports architecture and modeling projects
- Instant calculation of scaled distances
- User-friendly input for distance and scale
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Scale a measurement to a larger or smaller measurement, which is useful for architecture, modelling, and other projects. This app can be used to easily convert any distance in any scale to any other distance in any other scale. Simply enter the distance and scale to convert and the result will be displayed instantly. You need for example to create a mock up of a building at the scale 1:500. Enter the ground distances in the calculator, set the scale ratio to 1:500 and you'll get the mock up distance.
Model Paints
This app provides a comprehensive database of over 20,000 paints from numerous manufacturers, assisting scale model builders. It offers tools for browsing paint charts, matching colors from photos or the camera, and calculating scale conversions. The database is automatically updated with new colors and paint information.
- Extensive paint manufacturer database
- Color matching from photos and camera
- Scale calculation tools
- Paint blending for new colors
- Automatic database updates
- Search by barcode
- Paints lists support
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A database of paints from most of the manufacturers designed for modellers (more than 20000 paints). Model Paints simplifies scale model builder work by providing a set of easy to use and comprehensive tools. With Model Paints you can: - Browse paint charts from colour standards and model kit paint manufacturers; - Matching paints from whole database or your favourite paints only; - Matching from selected photo from you library; - Online matching from camera; - Get detailed information about paint; - Scale calculation; - Paint matching for a manually specified color - Search for paints by barcode - Paints lists support - Lightening result can depends scale - Getting new colors when blending paints - Database automatically update Current paint manufactures are include: - Abteilung 502 - Agama - AK Interactive - AMMO by Mig Jimenez - Andrea Miniatures - Arion Models - Aztek - Badger - Citadel Paints - Coat D'Arms - Createx Colors - CreateFX - Flames Of War - Floquil - Forge World - Gianonotes - Gravity Colors - Hannants - Hataka - Heki - Heller - Humbrol - Italeri - IPP - Jim Scale - Lefranc Bourgeois - LifeColor - Meng - Mig Productions - Mission Models - Model Master - Molotow - mr.Hobby - Mr.Paint - Pactra - Privateer Press - Pro Acryl - RailMatch - Reaper Miniatures - Revell - Scale75 - Scalecoat - Scale Colors - SMS Paints - Sovereign Hobbies - Splash Paints - Tamiya - Testors - The Army Painter - Vallejo - Wargames Foundry - Wilder - Winsor & Newton - [ ARM.PNT ] - Акан - Моделист - ZIPMaket - Zvezda ... and more References Charts: - Army-Navy Aeronautical (ANA) - British Standard 381C - British Standard 4800 - Federal Standard 595C - RLM - RAL Classic
Screenshots
Verdict
The clearest difference is rating: Model Paints at 4.3 against Scale Ratio's 3.7. Model Paints also leads on ratings volume (37 vs 3). Scale Ratio's advantage is ads (none vs shown) and update cadence (fortnightly vs every 2 months). On price, review sentiment, 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. Scale Ratio sells 1 one-off in-app purchase and Model Paints sells 2 in-app purchases, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.
Model Paints holds the better App Store score, 4.3 against 3.7. That said, the two scores are not equally well evidenced: Model Paints has 37 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 83% of Scale Ratio's written reviews are positive against 81% of Model Paints's, so the app with the better star average is not the one people write more warmly about.
Scale Ratio ships an update fortnightly, Model Paints every 2 months. The most recent releases landed on August 14, 2026 and August 19, 2026 respectively.
| Parameter | Scale Ratio | Model Paints |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 4.3 (37 ratings) — better |
| Positive reviews | 83.3% of reviews — better | 80.6% of reviews |
| Number of ratings | 3 | 37 — better |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 25 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Adrien Brecheteau | Valentin Ozerov |
Customer experience
Scale Ratio
Model Paints
In-app purchases
Scale Ratio
- Delete Ads in the app$4.99
Model Paints
- Annual subscription$2.991 Year
- Remove Ads$5.99
Questions
Is Scale Ratio free?
Is Model Paints free?
Which has better reviews, Scale Ratio or Model Paints?
Do Scale Ratio or Model Paints have ads?
Which is updated more often, Scale Ratio or Model Paints?
Other comparisons
