Comparison

Back vs Plugzzi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Subtracts entered time values
  • Starts at 60:00
  • AC button to clear all
  • Swipe to delete individual entries
  • Simple user interface
Features
Read full description

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.

About

Plugzzi

Read full description

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

Back4 screens
Plugzzi4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Plugzzi is free to download; Back costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Back ships an update every 7 months, Plugzzi every 4 months. Both last shipped on October 9, 2026.

Scorecard1 real difference · 9 level
Back versus Plugzzi: the parameters behind the verdict, then further details
ParameterBackPlugzzi
Price$0.99Free — better
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 7 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size4 MB70 MB
Age rating4+17+
DeveloperGoodman ProductionsPlugzzi Shpk

In-app purchases

None

Back

No in-app purchases

None

Plugzzi

No in-app purchases

Questions

Is Back free?
Back costs $0.99, with no in-app purchases.
Is Plugzzi free?
Plugzzi is free to download, with no in-app purchases.
Do Back or Plugzzi have ads?
Neither Back nor Plugzzi shows ads.
Which is updated more often, Back or Plugzzi?
Back ships an update every 7 months, and Plugzzi every 4 months. Most recently, Back was updated on October 9, 2026 and Plugzzi on October 9, 2026.

Other comparisons