# Sleep Time+ Cycle Alarm Clock vs NapBot

The clearest difference is review sentiment: Sleep Time+ Cycle Alarm Clock at 69% against NapBot's 21%. Sleep Time+ Cycle Alarm Clock also leads on rating (4.8 vs 4.2). NapBot's advantage is monetization model (free with in-app purchases vs subscription) and ads (none vs shown). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Sleep Time+ Cycle Alarm Clock sells 8 in-app purchases, starting at $4.99 per month and NapBot sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Sleep Time+ Cycle Alarm Clock holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 2.5K and 6.3K respectively. Written reviews point the same way: 69% of Sleep Time+ Cycle Alarm Clock's written reviews are positive against 21% of NapBot's.

Sleep Time+ Cycle Alarm Clock ships an update monthly, NapBot every 11 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Sleep Time+ Cycle Alarm Clock | NapBot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.5K ratings)](https://appshunter.io/ios/app/sleep-time-plus-cycle-alarm-clock/id498360026/reviews)** | [4.2 (6.3K ratings)](https://appshunter.io/ios/app/napbot-auto-sleep-tracker/id1476436116/reviews) |
| Number of ratings | 2.5K | **6.3K** |
| Positive reviews | **68.8% of reviews** | 20.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 185 MB | 16 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Azumio Inc.](https://appshunter.io/developer/439290207) | [Majid Jabrayilov](https://appshunter.io/developer/1149412983) |

## What reviewers say

### Sleep Time+ Cycle Alarm Clock

[App page](https://appshunter.io/ios/app/sleep-time-plus-cycle-alarm-clock/id498360026)

Understand your sleep patterns and wake up feeling refreshed. This app tracks sleep cycles, offers soothing soundscapes for falling asleep, and measures resting heart rate without wearables. It provides detailed analysis and customizable alarms to optimize your sleep and wake-up experience.

**Highlights:** Sleep cycle analysis, Soothing soundscapes, Resting heart rate measurement, Smart alarm clock, Detailed sleep graphs, Apple Health integration

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per month |
| Premium | $8.99 | per month |
| Premium | $9.99 | per month |
| Premium | $9.99 | per month |
| Premium | $19.99 | per 3 months |
| Premium | $29.99 | per year |
| Premium | $29.99 | per year |
| Premium | $46.99 | per year |

**What reviewers like**

- 🚀 Helps track sleep patterns
- 👍 Gentle alarm wakes you up
- 🌊 Soundscapes help fall asleep
- 💤 Provides sleep quality insights

**What reviewers complain about**

- 🐛 Alarm issues (fails to go off, resets unexpectedly)
- 🔋 Battery drain
- 💰 Paywall for core features
- 🤖 Inaccurate sleep tracking

**Reported bugs**

- Crashes on startup
- Freezing issues
- Inconsistent alarm behavior
- Lost sleep data after updates

**Requested features**

- Heart rate monitoring integration
- Sleep data export and analysis
- Apple Watch companion app
- More customization options


### NapBot

[App page](https://appshunter.io/ios/app/napbot-auto-sleep-tracker/id1476436116)

Automatically track and analyze your sleep cycles using on-device machine learning. Gain insights into sleep phases, heart rate, and environmental sound exposure to understand and improve your sleep quality. Access historical data and trends with a PRO subscription.

**Highlights:** Automatic sleep tracking, Detailed sleep phase analysis, Environmental sound exposure analysis, Sleep heart rate summary, Sleep history overview, Sleep trend tracking

**Features:** Family Sharing, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NapBot PRO Monthly | $4.99 | per month |
| NapBot PRO Annual | $29.99 | per year |

**What reviewers like**

- 🚀 Accurate sleep tracking
- 👍 Simple and easy to use
- 🚀 Automatic tracking without needing to open the app
- 🚀 Useful for shift workers and those with irregular sleep schedules

**What reviewers complain about**

- 💰 Expensive subscription model
- 🐛 Inaccurate sleep data and tracking
- 🐛 Fails to detect awakenings during the night
- 🐛 Tracks sedentary activities as sleep
- 🐛 Inability to edit or delete incorrect sleep data

**Reported bugs**

- App crashes after purchasing pro version
- Sleep data not syncing or disappearing
- Incorrect time zone and sleep duration displayed
- Fails to track sleep at all on some nights

**Requested features**

- Add ability to manually edit or delete sleep data
- Improve accuracy of sleep tracking
- Provide more detailed sleep analytics and insights
- Offer a one-time purchase option instead of subscription


## Frequently asked questions

### Is Sleep Time+ Cycle Alarm Clock free?

Sleep Time+ Cycle Alarm Clock is free to download, with in-app purchases available.

### Is NapBot free?

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

### Which has better reviews, Sleep Time+ Cycle Alarm Clock or NapBot?

Sleep Time+ Cycle Alarm Clock is rated higher. Sleep Time+ Cycle Alarm Clock averages 4.8 out of 5 from 2.5K ratings, while NapBot averages 4.2 from 6.3K ratings.

### Do Sleep Time+ Cycle Alarm Clock or NapBot have ads?

Sleep Time+ Cycle Alarm Clock shows ads; NapBot does not.

### Which is updated more often, Sleep Time+ Cycle Alarm Clock or NapBot?

Sleep Time+ Cycle Alarm Clock ships an update monthly, and NapBot every 11 days. Most recently, Sleep Time+ Cycle Alarm Clock was updated on November 1, 2026 and NapBot on November 3, 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.*