Comparison

MuStripKit vs CQDX 59

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

Head to head
About

MuStripKit

This app provides tools for analyzing and designing microstrip circuits. It calculates key parameters like input impedance and frequency response, and includes a Smith chart tool. It also features time-domain simulation of circuits with lumped elements and educational examples.

Highlights
  • Microstrip line analysis and synthesis
  • Input impedance and reflection coefficient calculations
  • Frequency response (S-parameters)
  • Smith chart tool
  • 1-D FDTD time-domain simulation
  • Educational circuit examples
Features
Read full description

MuStripKit is a versatile microstrip toolkit app for microstrip circuit analysis and design. The app realizes various functions, including microstrip line analysis and synthesis, calculations of input impedance, reflection coefficient, and frequency response in terms of S-parameters. A Smith chart tool is also provided to aid in designing a microstrip circuit. In addition, using a novel multiple 1-D FDTD method, the app shows time-domain simulation of microstrip circuits incorporated with lumped elements, including resistors, capacitors, and inductors in parallel, as well as series connections. Several educational circuit examples are provided to help illustrate the electromagnetic wave propagation in the microstrip circuit. For more information, please refer to "A Microstrip Circuit Tool Kit App with FDTD Analysis Including Lumped Elements," IEEE Microwave Magazine, vol. 16, no. 1, pp. 74-80, 2015. User interface: - touch on number field to input/change value - slider may be used to change value - swipe left/right to select circuit element - press 'Add'/'Del' to add/delete circuit element in schematic - tap to select circuit element in schematic - long press to move circuit element in schematic

About

CQDX 59

This app simulates amateur radio QSOs, allowing users to practice CQ calls and exchange signal reports. It offers realistic variations in call signs, voice quality, and signal levels for an authentic experience. Users can customize their own call sign and select various communication modes.

Highlights
  • QSO simulation for amateur radio
  • Realistic call sign and voice variations
  • Customizable own station call sign
  • 59 style or AADX Contest Style QSO
  • Phonetic code conversion
  • Pile-up mode support
  • QRN selection
Features
Read full description

This App is a real QSO simulator for Amateur Radio(HAM). Reproduce “QSO for CQ call, and 59 report exchange". In addition, the call sign and the voice quality (tone, speech speed) signal level of the speaker differ for each QSO to provide realism. Furthermore, the call sign of your own station that issues CQ can be set arbitrarily. 【Characteristic】 1. 59 style QSO or AADX Contest Style QSO 2. All call signs are converted to phonetic codes 3.Pseudo signal meter 4.Status display showing TX / RX 5.Voice select function from YL / OM 6.Phonetic code select function 7.Support the Pile-up Mode 【Other features】 1. A function to select the number of QSOs to communicate.     You can choose from 5 or 20. 2. A function to select QRN.     ON / OFF can be selected. 3. A function to select the area of ​​the call sign of the partner station.     You can choose from JA USA or W / W. 4. Supports easy mode. The pitch and volume of the partner station are constant. 5. Function to clear score information You can delete the high score information that you have. Supported keyboard input from Apple Silicon Mac. [Support Key] A-Z, 0-9, / Enter:return ESC:esc BS:delete CQ:UpArrow AGN:DownArrow TU:[ LEFT:LeftArrow RIGHT:RightArrow

Screenshots

MuStripKit4 screens
CQDX 594 screens

Verdict

The call

The clearest difference is rating: CQDX 59 at 5.0 against MuStripKit's 4.5. CQDX 59 also leads on update cadence (every 3 weeks vs every 19 months). MuStripKit's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, review sentiment, ratings volume and in-app purchases 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.

ReceptionRating · Positive reviews · Number of ratings

CQDX 59 holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

MuStripKit ships an update every 19 months, CQDX 59 every 3 weeks. The most recent releases landed on June 11, 2026 and September 27, 2026 respectively.

Scorecard5 real differences · 5 level
MuStripKit versus CQDX 59: the parameters behind the verdict, then further details
ParameterMuStripKitCQDX 59
PriceFreeFree
Rating4.5 (2 ratings)5.0 (3 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings23 — better
Update frequencyEvery 19 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size3 MB10 MB
Age rating4+4+
DeveloperEng Tankoji kamogawa

Customer experience

MuStripKit

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

CQDX 59

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

MuStripKit

No in-app purchases

None

CQDX 59

No in-app purchases

Questions

Is MuStripKit free?
MuStripKit is free to download, with no in-app purchases.
Is CQDX 59 free?
CQDX 59 is free to download, with no in-app purchases.
Which has better reviews, MuStripKit or CQDX 59?
CQDX 59 is rated higher. MuStripKit averages 4.5 out of 5 from 2 ratings, while CQDX 59 averages 5.0 from 3 ratings.
Do MuStripKit or CQDX 59 have ads?
CQDX 59 shows ads; MuStripKit does not.
Which is updated more often, MuStripKit or CQDX 59?
MuStripKit ships an update every 19 months, and CQDX 59 every 3 weeks. Most recently, MuStripKit was updated on June 11, 2026 and CQDX 59 on September 27, 2026.

Other comparisons