Back vs Plugzzi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Back
This utility app subtracts entered time values from a starting point of 60:00. It allows for easy deletion of individual entries or clearing all values to start fresh. Ideal for quick time calculations.
- Subtracts entered time values
- Starts at 60:00
- AC button to clear all
- Swipe to delete individual entries
- Simple user interface
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The Back-Time Calculator application allows you to enter time values to determine a back-time. The calculator starts at 60:00. You enter your time and press the enter button. Your time is subtracted from the current back-time value. When you want to start over, press the AC button to clear all entered values. You can also swipe individual times in the list to delete individual time entries.
Plugzzi
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With the rapid renewal of cell phones, people’s demand for cell phone range gradually increased. Rechargeable batteries are just the need for goods. But why more and more people are too lazy to go out with rechargeable batteries. According to statistics, 80% of users do not buy rechargeable batteries more than 5 times. Because they must charge themselves once beforehand, and if they forget to charge or are not around, the power of the phone battery will be depleted. So many people prefer to rent shared rechargeable batteries when they go out. So, the same question: when the phone runs out of battery, are we willing to go home and charge it, or are we willing to use a shared charging battery nearby? The shared charging industry caters to the public’s demand for cell phone battery life. And it serves as a backup power source and a cell phone accessory that is currently purchased more often by consumers. Among the various electronic products, smartphones have the highest demand for mobile power. Therefore, the steady growth of global smartphone users also provides a guarantee for the stable development of the mobile power industry. Nowadays, shared charging power has become an important part of the urban life service ecology. And is also gradually becoming a service standard in high-quality, high-value business districts. The combination of commercial complexes and shared chargers will further strengthen the value of the “billion-level” user traffic in the whole scene. Bringing convenience to consumers and higher quality business value to partners.
Screenshots
Verdict
The clearest difference is price: Plugzzi at Free against Back's $0.99. On update cadence, 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
Plugzzi is free to download; Back costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Back ships an update every 7 months, Plugzzi every 4 months. Both last shipped on October 9, 2026.
| Parameter | Back | Plugzzi |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 7 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 70 MB |
| Age rating | 4+ | 17+ |
| Developer | Goodman Productions | Plugzzi Shpk |
In-app purchases
Back
No in-app purchases
Plugzzi
No in-app purchases









