Comparison

Callout vs Shadowtrainer

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

Head to head
About

Callout

This app acts as a boxing workout assistant, calling out punch combinations during rounds to enhance training. It allows for extensive personalization of workout durations, combination frequency, and coach voice. Track your progress and adapt workouts to your skill level.

Highlights
  • Customizable round and rest durations
  • Adjustable combination call-out frequency
  • Create custom punch combinations
  • Select workout intensity and pace
  • Choose coach's voice
  • Apple Health integration
  • Southpaw mode
Features
Read full description

Callout is a simple and easy to use boxing workout timer and coach. Punch combinations are called out during boxing rounds to help push you to the next level! You can personalize the boxing workout to find what works best for you: • Customize the duration of rounds, rest, and warm up • Use ratings to decide how often a combination is called during rounds • Create your own custom combinations • Select the intensity and pace of the workout • Choose your coach's voice • Track your boxing workouts using Apple Health • Southpaw? We've got you covered Callout is for people who already know the basic boxing punches and want a good selection of combinations to be called out during workouts.

About

Shadowtrainer

Features
Read full description

Shadow boxing workout builder for true students of the craft. Designed for the boxer who wants to level up - when coach is a bit busy. Hone your skills, improve your reflexes, enhance your endurance and track your progress. Features: - Round Timer: set customizable rounds to match your training style - Coach calls: stay focused and train a specific skill - Workout Tracking: automatically logs your workouts and monitors your progress. Stay motivated. - Background Play: continue your workout in the background, even with your favorite music playing.

Screenshots

Callout4 screens
Shadowtrainer4 screens

Verdict

The call

The clearest difference is update cadence: Shadowtrainer at fortnightly against Callout's every 3 months. Shadowtrainer also leads on iOS requirement (13.4 vs 16.0). On price, 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

Both are free to download. Callout sells 1 one-off in-app purchase and Shadowtrainer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Callout ships an update every 3 months, Shadowtrainer fortnightly. The most recent releases landed on September 21, 2026 and September 8, 2026 respectively.

Scorecard2 real differences · 8 level
Callout versus Shadowtrainer: the parameters behind the verdict, then further details
ParameterCalloutShadowtrainer
PriceFreeFree
Rating4.5 (117 ratings) — better—
Positive reviews72.5% of reviews—
Number of ratings117 — better—
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.4 — better
Further details — not scored
Size4 MB48 MB
Age rating4+4+
DeveloperZack BartelThunk Tech Limited

Bugs and requests

Callout

Reported bugs

19 issues
  • Voice boost distorts/doesn't work on newer iOS
  • Voice boost broken on iOS 17
  • Voice boost is ear rape/joke
  • Static noise instead of voice
  • Bug with voice boost on iPhone 15 Pro
Show 14 more
  • Combination labels disappear on iPad
  • Custom combo changes affect all workouts
  • Custom combos not showing numbers
  • Custom combos erased after workout
  • Intensity setting not changeable
  • Voice boost distorts heavily
  • Voice boost feature stopped working
  • App stopped working, static noise
  • Voice changes make app unusable
  • Voice boost broken on iOS 17
  • Voice boost distorts heavily
  • Voice boost feature stopped working
  • App stopped working, static noise
  • Voice changes make app unusable

Requested features

72 requests
  • Add defensive moves (slips, blocks, rolls, weaves)
  • Add body shots (numbers 7-10)
  • Display called out combos on screen
  • Tie combo frequency to specific workouts
  • Adjust bell volume or mute bell
Show 67 more
  • Add kicks, knees, elbows
  • Save custom combo sets to workouts/rounds
  • Add option to create custom callouts (slip, block, roll, step back)
  • Add more good voices
  • Option to change start/end of round sounds
  • Add pause button
  • Add more numbers up to 12
  • Allow users to upload and vote on combos
  • Add option to add kicks
  • Add defense callouts
  • Add body shots
  • Add defense callouts
  • Add defense moves
  • Add defensive callouts
  • Add body shots
  • Add defense to be called out
  • Add body hooks
  • Add knees, leg kicks, and elbows
  • Add custom callouts and prompts
  • Show callout numbers on screen
  • Assign routines to rounds
  • Add our own voice to call out combinations
  • Save a selection of combos
  • Assign saved combos to workouts or rounds
  • Add body shots (7-8 for 1-2, 9-10 for 3-4)
  • Add defense to be called out
  • Add defense like SL, DR, C, BL
  • Add body hooks
  • Add defense like slips, blocks, ducks
  • Assign routines to rounds
  • Add defense like slips, blocks, ducks
  • Add custom callouts and prompts like slip, block, roll, step back
  • Show callout numbers on screen
  • Assign routines to rounds
  • Add our own voice to call out combinations
  • Add defensive callouts
  • Add body shots
  • Add defense callouts
  • Add defense moves
  • Add defensive callouts
  • Add body shots
  • Add defense to be called out
  • Add defense like SL, DR, C, BL
  • Add body hooks
  • Add defense like slips, blocks, ducks
  • Assign routines to rounds
  • Add defense like slips, blocks, ducks
  • Add custom callouts and prompts like slip, block, roll, step back
  • Show callout numbers on screen
  • Assign routines to rounds
  • Add our own voice to call out combinations
  • Add defensive callouts
  • Add body shots
  • Add defense callouts
  • Add defense moves
  • Add defensive callouts
  • Add body shots
  • Add defense to be called out
  • Add defense like SL, DR, C, BL
  • Add body hooks
  • Add defense like slips, blocks, ducks
  • Assign routines to rounds
  • Add defense like slips, blocks, ducks
  • Add custom callouts and prompts like slip, block, roll, step back
  • Show callout numbers on screen
  • Assign routines to rounds
  • Add our own voice to call out combinations

Shadowtrainer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Callout

One-time1
  • Callout Pro$1.99
1 purchases

Shadowtrainer

One-time1
  • Premium$3.99

Questions

Is Callout free?
Callout is free to download, with in-app purchases available.
Is Shadowtrainer free?
Shadowtrainer is free to download, with in-app purchases available.
Do Callout or Shadowtrainer have ads?
Neither Callout nor Shadowtrainer shows ads.
Which is updated more often, Callout or Shadowtrainer?
Callout ships an update every 3 months, and Shadowtrainer fortnightly. Most recently, Callout was updated on September 21, 2026 and Shadowtrainer on September 8, 2026.

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