Frame Rate vs Retinal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Frame Rate
Estimate the storage space required for your DVR system or determine how long your current storage will last. This tool supports various codecs, resolutions, and frame rates to provide accurate calculations for video surveillance needs.
- Storage estimation for DVRs
- Footage time calculation
- Supports multiple codecs (H.264, MPEG4, MJPEG)
- Configurable resolutions and frame rates
- Motion percentage input
- Camera quantity input
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Calculate the storage needed for your DVR or calculate the amount of footage time your DVR will hold. This easy to use tool calculates the estimated video storage needed based on different codecs, qualities, resolutions, frames per second, motion percentage, quantity of cameras, and the amount of time to hold onto data measured in days. You can also calculate the amount of time in days or even years a system will archive before the oldest data is overwritten. Currently uses the following codecs: -H.264 -H.265 (full version only) -MPEG4 -MJPEG Currently uses the following resolutions: -352x240 (1CIF) -704x240 (2CIF) -704x480 (4CIF) -1280x720 (720p) -1280x1024 (1.3MP) -1600x1200 (2MP) -1920x1080 (1080p) -2048x1536 (3MP) -2288x1712 (4MP) -2560x1920 (5MP) -3840x2160 (UHD) Measures data in kilobytes, megabytes, gigabytes, terabytes, or petabytes to the nearest 1/100th. Full Version Includes: -No Ads -H.265 Codec -Days Calculator -Ability to have up to 6 groups of cameras for calculating small systems Compatibility: All iPhone, iPad, iPod Touch types and generations with a minimum iOS version of 12.0 Found a bug? Something not working? Have a suggestion? Feel free to contact me via email: farren@phoxlocks.com
Retinal
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Not all displays for Mac are well suited to display the user interface in a non-scaled resolution. A pixel density of about 110 pixels per inch (PPI) for non-Retina, and about 220 PPI for Retina is comfortable for most people. Use Retinal to work out the pixel density of any display.
Screenshots
Verdict
The clearest difference is in-app purchases: Retinal at none against Frame Rate's 1. Retinal also leads on ads (none vs shown) and update cadence (fortnightly vs every 10 months). Frame Rate's advantage is iOS requirement (14.0 vs 17.0). On price and device support 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. Frame Rate sells 1 one-off in-app purchase. Retinal asks for nothing beyond the download.
Frame Rate ships an update every 10 months, Retinal fortnightly. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.
| Parameter | Frame Rate | Retinal |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 10 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Farren Domenici | Nico Rohrbach |
In-app purchases
Frame Rate
- Frame Rate Full Version$0.99
Retinal
No in-app purchases
