Video Size Calculator vs RandN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Video Size Calculator
This tool helps you estimate video file sizes based on resolution, frame rate, and duration. It supports various units for easy conversion and allows for custom size inputs.
- Calculate approximate file capacity
- Supports standard resolutions (HD, DVD)
- Custom size calculations
- Converts between GB, MB, KB, and bytes
- Input for total video time
- Selectable FPS
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"Video Size Calculator" is a useful tool that will calculate the approximate file capacity after creating video easily. [Feature] The main frame size and frame rate can be calculated quickly because it is registered in the tab. Custom sizes can also be calculated by any numerical input. Calculated capacity is GB, MB, KB, can change the bytes and the unit does not need to be calculated each time. [How to use] 1. Choose from, such as full high-definition and DVD size. 2. The total time of the video, hour, minute, second input and respectively. 3. Select the FPS (frames displayed per second). 4. Calculate the approximate capacity and press the "Calculate" button. 5. The approximate file capacity was calculated switching in arbitrary units to confirm. Attention: In the case of bit rate calculation is calculated to enter a number from the time you turned on the switch. Please press again "Calculate" button if you want to change the number or tab recalculation. Please understand that only an approximate file capacity. The capacity of the sound source is not included.
RandN
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RandN is a small, focused iPhone app for picking a random number in a selected range. Why it is useful: - No ads, banners, tracking, or forced videos. - Choose From and To with smooth wheel pickers instead of typing numbers. - Set a higher maximum in Settings when you need larger ranges. - The result updates automatically when either bound changes. - RandN remembers your selected range and maximum between sessions. - A fresh random result is generated each time the app launches. RandN supports positive integer ranges from 1 up to a configurable maximum of 100. The experience stays deliberately simple: open the app, choose the range, get the number.
Screenshots
Verdict
The clearest difference is price: RandN at Free against Video Size Calculator's $1.99. RandN also leads on update cadence (every 4 weeks vs every 59 months). On ads, in-app purchases, device support and iOS requirement 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
RandN is free to download; Video Size Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Video Size Calculator ships an update every 59 months, RandN every 4 weeks. The most recent releases landed on November 2, 2026 and October 24, 2026 respectively.
| Parameter | Video Size Calculator | RandN |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 2.7 (3 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 59 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 0 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Takeshi Kayahashi | Dmitry Kozlov |
In-app purchases
Video Size Calculator
No in-app purchases
RandN
No in-app purchases









