Comparison

Frequency vs Flat Rate Tech Log

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

Head to head
About

Frequency

Generate various sound waves, including sine, square, sawtooth, and triangle, with adjustable frequencies from 1Hz to 22000Hz. Visually observe animated sound waves and control volume. Useful for testing hearing, speakers, instruments, and even cleaning water from speakers.

Highlights
  • Generate sine, square, sawtooth, triangle waves
  • Adjustable frequency (1Hz-22000Hz)
  • Animated sound wave visualization
  • Volume control (0-100%)
  • Note selection
  • Speaker cleaning function
Features
Read full description

Are you producing? Want to sound test your speakers or tune your instruments? Or simply, do you want to generate sounds and listen to the generated sounds in different frequencies? Well, then you need a frequency sound generator to produce sound waves in different frequencies. Introducing Frequency Sound Generator! Frequency: Generator Sound player lets you generate a sine, square, sawtooth or triangle sound wave with a frequency between 1Hz and 22000Hz (Hertz). It produces accurate tone & soundwaves while being simple and easy to use. Additionally, pick from a wide variety of notes by taping the notes icon. No matter if you need to sound test and generate high frequency sounds or low frequency sounds, our frequency tone generator is your #1 best solution. EASY CONTROL Frequency: Sound Generator allows you to easily change the soundwaves from the main menu. Simply tap on the sound wave icon and pick between sine, square, sawtooth or triangle. ANIMATED SOUND WAVE You’ll love the animated sound wave function which visually represents the sound for a given frequency. You can change waveform by clicking on a round button at the left side and get a different sound and animated wave. ADJUST FREQUENCY & VOLUME Adjust the sound generating frequency easily by dragging the yellow dot. Make use of the - & + buttons for added adjusting precision. Additionally, control the volume of the generated sounds from 0-100%. NUMEROUS USES: This sound generating app can be used in multiple use cases: - Test your hearing. A human being is capable of hearing frequencies in the average range of 20Hz-20000Hz. This range is getting smaller by age, so it’s interesting to sound test your hearing capabilities. - Test speakers and headphones for the high end (treble) and low end (bass) tones. - Use this app as an instrument tuner when playing or producing. - Cleaning water from the speaker. Since sound is making small vibrations it can help to shake off unwanted water from your speakers. - Find your tinnitus frequency. NOTE: Since mobile phones are not high-quality audio sources and in-built speakers may vary in quality, sometimes users can hear sounds at very low or high frequencies even beyond the scope of human hearing. That noise is not sound of a given frequency but static or “parasite” noise generated by your mobile device. For the best experience use a pair of good quality headphones.

About

Flat Rate Tech Log

This app helps automotive technicians efficiently track repair orders, log work items, and scan VINs. It allows attaching photos, viewing activity summaries, and generating professional PDF reports for flagged hours. Designed for shop workflow, it organizes job details without paper notes.

Highlights
  • Track repair orders
  • Log work items
  • Scan VIN numbers
  • Attach photos to orders
  • Generate PDF reports
  • View activity summaries
Features
Read full description

Your shop's system tracks hours for the dealer. Flat Rate Tech Log tracks them for YOU. Every flat rate technician knows the feeling: payday comes, the check looks short, and you have no way to prove it. A missed diag, a warranty line that never got flagged, a comeback that ate your time. Those hours add up to real money. Flat Rate Tech Log gives you your own accurate record of every repair order and every flagged hour, so you can check your paycheck with confidence. KNOW WHAT YOU EARNED - See your flagged hours for the current pay period at a glance - Set your hourly rate and see your estimated earnings - Weekly, biweekly, semimonthly, or monthly pay periods - Compare your totals against your pay stub before it's too late to dispute - Get reminders before each pay period closes LOG FAST, RIGHT FROM THE BAY - Log a repair order in seconds - Add multiple work items to the same RO - Track diagnostic and repair hours separately - Save job templates for the work you do most - Scan VIN numbers with your camera - Attach photos to each repair order - Check your hours and earnings from Home Screen widgets PROOF WHEN YOU NEED IT - Reports by week, pay period, or any custom date range - Export professional PDF reports of your flagged hours - Closed repair orders are locked in read-only mode for reliable records - Your data syncs securely across your devices with iCloud Built by someone who has worked in the dealership world, for technicians who want to protect every hour they earn. SUBSCRIPTION Flat Rate Tech Log offers Monthly Access and Yearly Access as auto-renewable subscriptions. Yearly Access includes a 1-week free trial for new subscribers. Payment will be charged to your Apple Account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage and cancel your subscriptions in your App Store account settings. Terms of Use (EULA): https://cesaribarra.net/terms-of-use-end-user-license-agreement/ Privacy Policy: https://cesaribarra.net/privacy-policy/

Screenshots

Frequency3 screens
Flat Rate Tech Log4 screens

Verdict

The call

The clearest difference is rating: Frequency at 4.7 against Flat Rate Tech Log's 3.5. Frequency also leads on in-app purchases (none vs 3) and ratings volume (1.2K vs 2). Flat Rate Tech Log's advantage is ads (none vs shown). On price 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. Flat Rate Tech Log sells 3 in-app purchases, starting at $1.99 per 7 days. Frequency asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Frequency holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: Frequency has 1.2K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 73% of Frequency's written reviews are positive against 50% of Flat Rate Tech Log's.

UpkeepUpdate frequency

Frequency ships an update fortnightly, Flat Rate Tech Log monthly. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard8 real differences · 2 level
Frequency versus Flat Rate Tech Log: the parameters behind the verdict, then further details
ParameterFrequencyFlat Rate Tech Log
PriceFreeFree
Rating4.7 (1.2K ratings) — better3.5 (2 ratings)
Positive reviews72.7% of reviews — better50.0% of reviews
Number of ratings1.2K — better2
Update frequencyFortnightly — betterMonthly
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.6
Further details — not scored
Size8 MB8 MB
Age rating4+4+
DeveloperLucija JaksicCesar Ibarra

Customer experience

Frequency

All ratings338 ratings
Positive93.5%
Neutral3.3%
Negative3.3%
Written reviews66 reviews
Positive72.7%
Neutral4.5%
Negative22.7%

Flat Rate Tech Log

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Bugs and requests

Frequency

Reported bugs

4 issues
  • Slider snaps to certain numbers, skipping decimals
  • Missing specific frequencies (431Hz, 432Hz, 128Hz)
  • Settings/controls off-screen on smaller devices
  • App crashes when switching between applications

Requested features

9 requests
  • Manual text input for precise frequency selection
  • Ad-free paid version option
  • Timer feature for sessions
  • Digital tuning with +/- buttons on main screen
  • Background image customization or frequency healing chart
Show 4 more
  • Decimal frequency support
  • Increased decibel/amplification levels
  • Language localization (Turkish requested)
  • Continuous background play without app switching interruption

Flat Rate Tech Log

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Frequency

No in-app purchases

3 purchases

Flat Rate Tech Log

Subscriptions3
  • Weekly Access$1.997 Days
  • Monthly Access$4.991 Month
  • Yearly Access7 Days trial$39.991 Year

Questions

Is Frequency free?
Frequency is free to download, with no in-app purchases.
Is Flat Rate Tech Log free?
Flat Rate Tech Log is free to download, with in-app purchases available.
Which has better reviews, Frequency or Flat Rate Tech Log?
Frequency is rated higher. Frequency averages 4.7 out of 5 from 1.2K ratings, while Flat Rate Tech Log averages 3.5 from 2 ratings.
Do Frequency or Flat Rate Tech Log have ads?
Frequency shows ads; Flat Rate Tech Log does not.
Which is updated more often, Frequency or Flat Rate Tech Log?
Frequency ships an update fortnightly, and Flat Rate Tech Log monthly. Most recently, Frequency was updated on November 8, 2026 and Flat Rate Tech Log on October 31, 2026.

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