Comparison

Mariabs · Interval Timer vs HIIT Customizable Timer

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

Head to head
About

Mariabs · Interval Timer

This app provides a customizable interval timer for various training styles like HIIT and Tabata. It offers voice cues, haptic feedback, and a clear display to keep users focused on their workouts. A new run mode with GPS tracking is also available.

Highlights
  • Customizable interval parameters
  • Voice cues for transitions
  • Musical chimes and haptic feedback
  • GPS tracking for runs
  • Run/walk interval support
  • Glanceable monochrome display
  • Workout settings remembered
Features
Read full description

Mariabs is a sharp, minimal interval timer for anyone who trains in rounds — tabata, HIIT, EMOM, circuits, or your own custom intervals. Set your prepare, work, rest, cycles, blocks, and block-rest durations in seconds. Press the white play button. Mariabs counts you in, calls out each phase, and chimes the final 3-2-1 of every interval so you can keep your eyes on what you're doing instead of on the screen. WHAT YOU GET • Six adjustable parameters: prepare, work, rest, cycles per block, number of blocks, and rest between blocks • Voice cues for every transition: "Prepare", "Work", "Rest", and "Block complete — get ready for the next" • Distinct musical chimes per phase, generated on-device, synced with light haptics • 3-2-1 countdown ticks before each phase change • Big, monochrome timer dial with a subtle progress ring tinted to the current phase • Cycle and block progress shown at all times so you always know where you are • Plays over whatever you're already listening to — music, podcasts, anything — and lowers it only for the moment Mariabs speaks • Stays awake automatically while a workout is running • Settings remembered between launches NEW IN 2.0: RUN MODE Switch from TIMER to RUN and Mariabs measures your run with GPS. • Just run: distance, pace, time and your route on a map, with an optional time goal and/or distance goal • Run / walk: run and walk intervals on top of the run (default run 4:00, walk 1:00 × 6), spoken over your music • Your split for every kilometre (or mile) is called out with its pace • Lock Screen and Dynamic Island show the countdown, distance and pace • Save or discard each run. Saved runs stay on your iPhone, with map and splits, and can be exported as GPX • No account, nothing uploaded. Runs are not written to Apple Health DESIGNED TO STAY OUT OF THE WAY The screen is dark, glanceable from across a gym, and built around one button. There are no menus, no levels, no streaks, no badges, no analytics. You configure once, then press play. PRIVACY Mariabs collects nothing. No account. No email. No analytics. No tracking. Your settings, runs and routes stay on your device. Location is used only during a run. The privacy policy is one page; you can read it before you tap install. NO ADS Mariabs has no ads, no in-app purchases, and no premium tier. No account required.

About

HIIT Customizable Timer

Features
Read full description

Build the exact interval workout you want — no presets forcing you into someone else's structure. HIIT Customizable Timer lets you set every variable yourself: • Work time and rest time, set independently • Number of sets per round and number of rounds • Warmup and cooldown periods • Voice announcements (text-to-speech) so you know what's coming without looking at your screen Prefer not to build from scratch? Choose from pre-loaded workout templates and start in seconds. Whether you're doing Tabata, circuit training, boxing rounds, EMOM, or your own custom protocol, the timer adapts to you. No account required. No ads. No in-app purchases. Just a timer that works exactly the way you want it to.

Screenshots

Mariabs · Interval Timer4 screens
HIIT Customizable Timer3 screens

Verdict

The call

Mariabs · Interval Timer and HIIT Customizable Timer are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ScorecardNo meaningful differences
Mariabs · Interval Timer versus HIIT Customizable Timer: the parameters behind the verdict, then further details
ParameterMariabs · Interval TimerHIIT Customizable Timer
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS16.2 — better17.0
Further details — not scored
Size5 MB1 MB
Age rating4+4+
DeveloperPER MAGNE HELSETHELLIOTT BRIAN MILES

In-app purchases

None

Mariabs · Interval Timer

No in-app purchases

None

HIIT Customizable Timer

No in-app purchases

Questions

Is Mariabs · Interval Timer free?
Mariabs · Interval Timer is free to download, with no in-app purchases.
Is HIIT Customizable Timer free?
HIIT Customizable Timer is free to download, with no in-app purchases.
Do Mariabs · Interval Timer or HIIT Customizable Timer have ads?
Neither Mariabs · Interval Timer nor HIIT Customizable Timer shows ads.

Other comparisons