Bedtime Sleep Cycles vs Voltcraft VC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bedtime Sleep Cycles
This utility helps you determine the optimal time to wake up by visualizing sleep cycles. Simply adjust colored bars on a clock to find a wake-up time that aligns with the height of your sleep cycle, helping you feel more refreshed.
- Visualize sleep cycles
- Adjust wake-up times
- Optimal sleep timing
- Red, yellow, blue sleep indicators
- Lightweight design
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Bedtime is a simple and colorful way to determine what time you should wake up. Just drag and the colored bars around the clock to find a good time to set your alarm for. - Red is the minimum time of sleep. - Yellow is a fair night of sleep. - Blue is the optimal amount of sleep. Research indicates that waking up in the middle of a sleep cycle causes you to feel tired and groggy. Waking up at the height of your sleep cycle allows you to feel more refreshed for your morning. Planning your night sleep at a timed interval is the best way to achieve this. Take the pain out of deciding what time to set your alarm and let Bedtime decide. Bedtime is free, lightweight and has no ads or usage tracking whatsoever. Please Note: Bedtime is not an alarm clock. Apple does not let apps set the system alarm. Bedtime can only tell you when to set your alarm.
Voltcraft VC
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Compatible with Voltcraft's VC-41 Series socket tester, the App allows the user to: • Stream data to iPhone or iPad internal memory, with real-time remote viewing • Adjust sample rate • Export data in Excel® format • Share data files directly from application • Take snapshots of the measurement area with the connected iPhone or iPad camera • Store over 15k readings with the VC-41 wireless datalogging module, for download to Phone or Tablet, with programmable datalogger file size
Screenshots
Verdict
The clearest difference is update cadence: Voltcraft VC at every 2 months against Bedtime Sleep Cycles's every 6 months. Bedtime Sleep Cycles's advantage is iOS requirement (9.0 vs 11.0). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Bedtime Sleep Cycles ships an update every 6 months, Voltcraft VC every 2 months. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.
| Parameter | Bedtime Sleep Cycles | Voltcraft VC |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Positive reviews | 69.2% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 6 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 1 MB | 13 MB |
| Age rating | 4+ | 17+ |
| Developer | Zachary Howe | CEI Conrad Electronic International (HK) Limited |
In-app purchases
Bedtime Sleep Cycles
No in-app purchases
Voltcraft VC
No in-app purchases
Questions
Is Bedtime Sleep Cycles free?
Is Voltcraft VC free?
Do Bedtime Sleep Cycles or Voltcraft VC have ads?
Which is updated more often, Bedtime Sleep Cycles or Voltcraft VC?
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