# Day Counter vs OiSee

The clearest difference is in-app purchases: OiSee at none against Day Counter's 13. OiSee also leads on iOS requirement (9.0 vs 15.6). Day Counter's advantage is update cadence (every 6 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Day Counter sells 13 one-off in-app purchases. OiSee asks for nothing beyond the download.

Day Counter ships an update every 6 weeks, OiSee every 5 months. The most recent releases landed on September 25, 2026 and December 6, 2025 respectively.

## The numbers

| Metric | Day Counter | OiSee |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (447 ratings)](https://appshunter.io/ios/app/day-counter-countdown-timer/id1499976509/reviews)** | — |
| Number of ratings | **447** | — |
| Positive reviews | 90.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 72 MB | 16 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bitsens](https://appshunter.io/developer/961189050) | [Guangzhou T.K Medical Instrument Co., Ltd.](https://appshunter.io/developer/1206695557) |

## What reviewers say

### Day Counter

[App page](https://appshunter.io/ios/app/day-counter-countdown-timer/id1499976509)

Track days until or since any special moment with this simple and elegant app. It helps you manage personal goals, habits, and important life events with customizable counters and notifications.

**Highlights:** Count Up & Countdown Modes, Unlimited Counters, Widgets & Reminders, Custom Notifications, Clean & Minimal Design, Habit and Streak Tracker

**Features:** Family Sharing, Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |
| Custom Colors | $2.99 | one-time |
| Notes | $3.49 | one-time |
| Dark Mode | $4.49 | one-time |
| All In One. 75% OFF | $4.99 | one-time |
| Widget | $5.99 | one-time |
| All In One. 50% OFF | $9.99 | one-time |
| All In One. 60% OFF | $9.99 | one-time |
| Unlimited counters | $10.99 | one-time |
| All In One. 50% OFF | $11.99 | one-time |
| All In One. 30% OFF | $15.99 | one-time |
| All In One | $19.99 | one-time |
| All In One | $24.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Simple and efficient
- 💡 Helpful for tracking progress
- 🎨 Nice design and colors
- 🙌 Motivating and accountability

**What reviewers complain about**

- 🔒 Limited free features
- 🔍 Lack of customization options
- 🔋 Frequent ads in free version
- 🕰️ Missing time-based tracking

**Reported bugs**

- Inconsistent date/time display
- Occasional sync issues between devices

**Requested features**

- Add time-based tracking (hours, minutes, seconds)
- Provide more customization options
- Improve widget functionality
- Introduce a dark mode option


### OiSee

[App page](https://appshunter.io/ios/app/oisee/id1623502703)

**In-app purchases:** none


## Frequently asked questions

### Is Day Counter free?

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

### Is OiSee free?

OiSee is free to download, with no in-app purchases.

### Do Day Counter or OiSee have ads?

Neither Day Counter nor OiSee shows ads.

### Which is updated more often, Day Counter or OiSee?

Day Counter ships an update every 6 weeks, and OiSee every 5 months. Most recently, Day Counter was updated on September 25, 2026 and OiSee on December 6, 2025.

---

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