Comparison

555 Calc vs Waves Portal

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

Head to head
About

555 Calc

This utility app helps engineers and hobbyists calculate resistor values for circuits using the Timer IC 555. Simply input frequency, duty ratio, and capacitor values to get the required resistor outputs.

Highlights
  • Calculate resistor values
  • Input frequency
  • Input duty ratio
  • Input capacitor value
  • Timer IC 555 circuit design
Features
Read full description

This App calculates registors value, when designing the circuit using Timer IC 555. How to (1) Input Frequency value. (2) Input Duty Ratio. (3) Input C1 Value. (4) Touch ‘Calculate’ button. (5) Registors value will be displayed. Note. * Set Duty Ratio to 50 ~ 99. * If you set Duty Ratio to 50, R1 value will be set to 0.

About

Waves Portal

This app lets X subscribers check their subscription details, including expiration dates, current speed, and activated packages. Users can also monitor daily and monthly data consumption, view internet logs, and review payment history and subscription balances.

Highlights
  • Check subscription details
  • View expiration dates
  • Monitor data consumption
  • Track internet logs
  • Review payment history
  • Check subscription balance
Features
Read full description

An application that allows X subscribers to inquire about their daily and monthly consumption and know the account and package information. 1- Inquiry about the subscription information and details 2- Inquiring about the subscription expiration date 3- Inquiry about the subscription status, current speed and activated package 4- Inquire about monthly or daily data consumption 5- Inquire about logs on the Internet and the consumption of data in each session 6- Inquiring about all payments for the monthly bills and added packages 7- Inquiry about the subscription balance

Screenshots

555 Calc1 screens
Waves Portal4 screens

Verdict

The call

The clearest difference is review sentiment: 555 Calc at 50% against Waves Portal's 0%. 555 Calc also leads on iOS requirement (11.0 vs 15.6). Waves Portal's advantage is ads (none vs shown) and update cadence (daily vs every 20 months). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

555 Calc ships an update every 20 months, Waves Portal daily. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
555 Calc versus Waves Portal: the parameters behind the verdict, then further details
Parameter555 CalcWaves Portal
PriceFreeFree
Rating4.0 (3 ratings) — better—
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings3 — better—
Update frequencyEvery 20 monthsDaily — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size18 MB31 MB
Age rating4+4+
DeveloperJibiki WorksSalem Berro

Customer experience

555 Calc

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Waves Portal

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

555 Calc

No in-app purchases

None

Waves Portal

No in-app purchases

Questions

Is 555 Calc free?
555 Calc is free to download, with no in-app purchases.
Is Waves Portal free?
Waves Portal is free to download, with no in-app purchases.
Do 555 Calc or Waves Portal have ads?
555 Calc shows ads; Waves Portal does not.
Which is updated more often, 555 Calc or Waves Portal?
555 Calc ships an update every 20 months, and Waves Portal daily. Most recently, 555 Calc was updated on November 1, 2026 and Waves Portal on October 30, 2026.

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