Powertime vs Olarm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Powertime
Easily purchase prepaid electricity and airtime, and pay municipal bills with a single click. Access your purchase history, view usage graphs, and find energy-saving tips. This app is exclusively for South African meters and networks.
- Prepaid electricity purchase
- Airtime purchase
- Municipal bill payment
- Purchase history
- Usage graphs
- Energy saving tips
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Buy Prepaid Electricity, airtime and Pay your bills in 1 click, 24/7, from anywhere. Features: Buy Prepaid Electricity and Airtime Pay municipal bills Purchase History Usage graphs Energy saving tips Only supports South African meters. Supported areas/networks are listed on https://powertime.zendesk.com/hc/en-us/articles/201877307-What-are-the-supported-areas-for-prepaid-electricity-vending- Please send your comments and suggestions to support@powertime.co.za.
Olarm
Control and manage your home alarm system directly from your smartphone. This app allows you to arm, disarm, and monitor your system in real-time, receive notifications, and manage users. It also offers features like silent panic and gate control.
- Arm, Disarm, Sleep, Stay modes
- Arming reminders
- Real-time zone activity log
- Silent Panic
- Cancel Responder
- User management
- Gate and light control
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This is the companion app to the Olarm device. Plug and play into your existing home alarm system and you can control and manage your home alarm system from your phone. Please visit our website for more information. Features: - Set your alarm system to Arm, Disarm, Sleep or Stay - Set reminders to arm your system - Real-time zone activity log and notifications - Silent Panic - Cancel Responder - User management - Monitor electric fence - Control gates and lights
Screenshots
Verdict
The clearest difference is rating: Powertime at 5.0 against Olarm's 3.9. Powertime also leads on iOS requirement (11.0 vs 15.1). Olarm's advantage is update cadence (every 3 weeks vs every 3 months) and review sentiment (54% vs 42%). On price, ads, in-app purchases and monetization model 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.
Powertime holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Olarm has 32 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 42% of Powertime's written reviews are positive against 54% of Olarm's, so the app with the better star average is not the one people write more warmly about.
Powertime ships an update every 3 months, Olarm every 3 weeks. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.
| Parameter | Powertime | Olarm |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | 3.9 (32 ratings) |
| Positive reviews | 41.8% of reviews | 54.2% of reviews — better |
| Number of ratings | 6 | 32 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 6 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Powertime | Olarm (Pty) Ltd |
Customer experience
Powertime
Olarm
In-app purchases
Powertime
No in-app purchases
Olarm
No in-app purchases
