# One Second Day vs Second By Second

The clearest difference is ads: One Second Day at none against Second By Second's shown. One Second Day also leads on iOS requirement (15.0 vs 18.0). Second By Second's advantage is update cadence (daily vs every 5 months) and review sentiment (100% vs 80%). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. One Second Day sells 6 in-app purchases, starting at $3.99 per month and Second By Second sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

One Second Day ships an update every 5 months, Second By Second daily. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | One Second Day | Second By Second |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/one-second-day-video-diary/id6449895509/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Daily** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 68 MB | 6 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nikita Prokopishin](https://appshunter.io/developer/1684688708) | [Joshua Brunk](https://appshunter.io/developer/1866662937) |

## What reviewers say

### One Second Day

[App page](https://appshunter.io/ios/app/one-second-day-video-diary/id6449895509)

Capture a single second of video each day to create a personal movie montage of your life. This app offers a simple camera, helpful reminders, and the ability to compile your daily clips into a year-in-review film or for any selected period.

**Highlights:** Record one second of video daily, Daily video recording reminders, Track consecutive recording streaks, Combine clips into a single movie, Create movies for specific time periods, Option for multiple shots on special days

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Unlimited Access | $3.99 | per month |
| Unlimited Access (Monthly) | $4.99 | per month |
| Annual Unlimited Access | $19.99 | per year |
| Unlimited Access (Annual) | $29.99 | per year |
| Lifetime Unlimited Access | $29.99 | one-time |
| Unlimited Access | $49.99 | one-time |


### Second By Second

[App page](https://appshunter.io/ios/app/second-by-second/id6757405910)

Capture your life one second at a time with this free journaling app. It offers simple recording, complete privacy with local storage, and powerful features like a calendar view and instant timeline. Maintain your habit with daily reminders.

**Highlights:** One-second video recording, Local storage for privacy, Calendar and timeline views, One-tap video stitching, Smart video importer, Daily recording reminders

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support the Development | $0.99 | one-time |


## Frequently asked questions

### Is One Second Day free?

One Second Day is free to download, with in-app purchases available.

### Is Second By Second free?

Second By Second is free to download, with in-app purchases available.

### Do One Second Day or Second By Second have ads?

Second By Second shows ads; One Second Day does not.

### Which is updated more often, One Second Day or Second By Second?

One Second Day ships an update every 5 months, and Second By Second daily. Most recently, One Second Day was updated on October 9, 2026 and Second By Second on October 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*