# Flip Timer & stopwatch vs Trellis

The clearest difference is ads: Trellis at none against Flip Timer & stopwatch's shown. Trellis also leads on update cadence (every 5 days vs every 3 months). Flip Timer & stopwatch's advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Flip Timer & stopwatch sells 3 one-off in-app purchases and Trellis sells 6 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Flip Timer & stopwatch ships an update every 3 months, Trellis every 5 days. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Flip Timer & stopwatch | Trellis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7.6K ratings)](https://appshunter.io/ios/app/flip-timer-and-stopwatch/id1304344207/reviews)** | — |
| Number of ratings | **7.6K** | — |
| Positive reviews | 68.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 46 MB | 31 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [俐 马](https://appshunter.io/developer/1896144174) | [Yusuf Melih Bozgeyik](https://appshunter.io/developer/6794795348) |

## What reviewers say

### Flip Timer & stopwatch

[App page](https://appshunter.io/ios/app/flip-timer-and-stopwatch/id1304344207)

This app offers a full-screen digital timer with a unique flip animation to visualize time progression. It also includes a stopwatch for tracking activities like workouts, study sessions, and work. Customize reminder sounds and background audio for an immersive experience.

**Highlights:** Full-screen digital timer, Flip animation for time visualization, Countdown timer, Stopwatch functionality, Customizable reminder sounds, Background sound options, Keep screen on for progress viewing

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| All the skins | $0.99 | one-time |
| Pro Version | $1.99 | one-time |

**What reviewers like**

- 👍 Simple and straightforward design
- 🚀 Large, easy-to-read display
- 💡 Unique flipping timer interface
- 🕰 Remembers previous time settings
- 👍 Works well for classroom/productivity use

**What reviewers complain about**

- 🐛 Timer sometimes skips seconds or doesn't work accurately
- 💰 Ads are intrusive and disruptive
- 🔒 Paid features should be included in free version
- 🔋 Timer stops working when device is locked or app is in background

**Reported bugs**

- Timer randomly stops counting down
- Unable to stop/reset timer once started
- Ads prevent user from interacting with timer

**Requested features**

- Add option to set timer in hours/minutes/seconds
- Implement repeat/loop functionality for timer
- Allow custom alarm/notification sounds
- Improve landscape mode support


### Trellis

[App page](https://appshunter.io/ios/app/trellis-study-planner/id6799188483)

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trellis Base | $4.99 | per month |
| Trellis Max | $9.99 | per month |
| Trellis Ultra | $19.99 | per month |
| 50 Credit | $3.99 | one-time |
| 150 Credit | $8.99 | one-time |
| 400 Credit | $17.99 | one-time |


## Frequently asked questions

### Is Flip Timer & stopwatch free?

Flip Timer & stopwatch is free to download, with in-app purchases available.

### Is Trellis free?

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

### Do Flip Timer & stopwatch or Trellis have ads?

Flip Timer & stopwatch shows ads; Trellis does not.

### Which is updated more often, Flip Timer & stopwatch or Trellis?

Flip Timer & stopwatch ships an update every 3 months, and Trellis every 5 days. Most recently, Flip Timer & stopwatch was updated on October 16, 2026 and Trellis on October 13, 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.*