Comparison

Ferro AI vs FulwaveTimer

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

Head to head
About

Ferro AI

Features
Read full description

Most timer apps are clocks with a countdown. Ferro is a living ferrofluid creature that thinks, reacts, speaks, and runs every timer you will ever need. UNLIKE ANYTHING IN THE APP STORE Ferro is the most beautiful timer ever made for iPhone. Not a skin. Not a theme. A new object, built from the ground up with real fluid physics and a visual language no other app has. THE BLOB Ferro is not a UI element. It is alive. It breathes on your home screen. Churns when it is thinking. Pulses with the intensity of your session. Freezes perfectly still when you pause. Touch it, it parts and reforms. When you finish, it celebrates. Every state means something. That is not decoration. That is design. ALL YOUR TIMERS. ONE APP. Describe what you need and Ferro builds it instantly. Or create it by hand, exactly how you want it. Focus and Deep Work. HIIT Intervals and Tabata. EMOM and AMRAP. Pomodoro and Flowmodoro. Breathing and Meditation. Countdown and Stopwatch. Custom plans for cooking, ladders, anything you can name. Combine them into unique sequences! Twelve timer types in one place. You will not need another timer app. THE AGENTIC AI Tell Ferro what you need. It does not just listen, it thinks. In seconds it reads your intent, picks the right timer type, structures every phase, names the session, and is ready. "4 rounds of Tabata, 3 sets." "Flowmodoro, keep me in it." "Something to wind down." Builds that would take minutes by hand, done before you finish the sentence. Then it stays with you. It speaks at the right moments, with the right tone, knowing exactly where you are in the session. "Smells close." when your pasta is nearly done. "Last one. Everything." on your final round. Context aware. Never scripted. Never repeated. This is not a timer with AI bolted on. Ferro's brain is the product. PICK WHO RUNS YOUR SESSION Personalities change how Ferro behaves, not just how it sounds. One keeps you steady. One doesn't care about your feelings. You decide how present it is, from nearly silent to always there. Strong language is opt in and off by default. And it sounds real. The voice breathes, times its pauses, and carries whichever personality you picked. FLOWS Chain timers into one sequence and run it hands free. Warmup, work, rest, repeat, cooldown, in a single tap. Build it yourself in the editor, or describe it and let the AI structure the whole thing. FOCUS SHIELD Block the apps that break your focus for the length of a session. They come back the moment the timer ends. YOUR PROGRESS Streaks, banked time, personal records, badges, and daily missions. Every session you finish is counted, and you can see exactly where your time went. ON EVERY SURFACE Live Activity with controls on the Lock Screen and the Dynamic Island. Home Screen widgets. Control Center controls. Siri. FERRO PRO Ferro Pro unlocks the AI, the voice, and Flows, with a 3-day free trial. Weekly and annual plans. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ferroai.app/privacy

About

FulwaveTimer

Features
Read full description

Most timers count to zero. FulwaveTimer runs your whole routine — built from stages, each with its own length, color, and most important sound. Intervals, Pomodoro focus blocks, breathing exercises, a speech you're rehearsing, a sleep wind-down: set the structure once, press play, and follow along by sound, on your Lock Screen, or from your wrist. BUILD IT YOUR WAY • Multistage timers — add as many stages as you like, each with its own duration and color. • Per-stage sound — play an audio track you own, or have the app read text aloud with a voice and speed you choose. • Independent transitions — set how each stage's audio starts and ends on its own: Cut, Fade, or Crossfade into the next stage. • Per-stage haptics and alert tones, plus a spoken 10-second warning or 3-2-1 countdown. • Repeat a single stage, or loop the whole playlist — perfect for HIIT rounds, Pomodoro cycles, and breathing sets. • Start fast from built-in templates: Pomodoro, HIIT, Box Breathing, Meditation, and more. ON-SCREEN TEXT FOR SPEECHES • Show a stage's text on the Player and scroll it in time with the reading — a simple teleprompter for practicing a talk. VOICE-OVERS, IN YOUR VOICE • A session can carry its spoken words as text rather than baked-in audio, so your device reads them over the stage's music in any voice you have installed — including another language. • Set the voice and the speed, or turn speaking off and read along on screen. Yours to adjust even in a locked session. STAY IN CONTROL, EVERYWHERE • Live Activity and Dynamic Island show your session on the Lock Screen with a glanceable countdown. • A Quick Start Home Screen widget launches a playlist with one tap. • On-time stage notifications announce each new stage by name. • Lock Screen and headphone controls to play, pause, and skip. APPLE WATCH + APPLE HEALTH • A live timer on your wrist with stage, countdown, and controls. • Record your session as a workout in Apple Health — with heart rate, active energy, and the workout type you set on the playlist. • Wrist haptics fire at every stage change, even with the screen off. YOUR LIBRARY, SAFE AND IN SYNC • iCloud keeps your playlists in sync across your devices, privately. • Color-tag playlists to organize your library. • Export and import playlists. • Automatic backups with one-tap restore — the newest also kept in your own iCloud account, so it survives a reinstall. • A shared session puts its own audio back on your other devices, or after a reinstall. MADE TO FIT YOU • Custom accent, background, and text colors; Dynamic Type and VoiceOver throughout. • A simplified Playback-Only view when you just want to press play. • Works on iPhone, iPad, and Apple Silicon Mac. FULWAVE PRO FulwaveTimer is free to use, and keeps a small library at no cost. Fulwave Pro unlocks an unlimited playlist library and session export. Pro is available as a monthly subscription with a 7-day free trial, or a one-time lifetime purchase. SHARE COMPLETE SESSIONS Bundle a playlist together with its audio into a single .fws session file and share it. Anyone can open and play a session they receive; Fulwave Pro keeps imported sessions in your library permanently. FULWAVE DESIGNER FOR MAC Fulwave Designer is a free companion app on the Mac App Store. Build a session on a big screen: layer several audio tracks and spoken-text cues on a single stage, set each layer's start delay, gain, and pan, choose haptics and stage colors, add session artwork, and audition it all on a transport. Export a .fws session — optionally locked, so it plays exactly as you built it — to play or share here. Sessions you receive open and play for free; Fulwave Pro keeps them in your library. No accounts. No ads. No tracking. Your data stays on your devices. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://fulwave.com/FulwaveTimer/PrivacyPolicy.html

Screenshots

Ferro AI4 screens
FulwaveTimer4 screens

Verdict

The call

The clearest difference is update cadence: FulwaveTimer at every 3 days against Ferro AI's every 3 months. FulwaveTimer also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Ferro AI sells 2 in-app purchases, starting at $3.99 per month and FulwaveTimer sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Ferro AI ships an update every 3 months, FulwaveTimer every 3 days. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

Scorecard2 real differences Ā· 4 level
Ferro AI versus FulwaveTimer: the parameters behind the verdict, then further details
ParameterFerro AIFulwaveTimer
PriceFreeFree
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS18.617.6 — better
Further details — not scored
Size44 MB9 MB
Age rating9+4+
DeveloperFRANCESCO SCURAPhillip Fuller

In-app purchases

2 purchases

Ferro AI

Subscriptions2
  • Ferro Monthly3 Days trial$3.991 Month
  • Ferro Annual3 Days trial$29.991 Year
2 purchases

FulwaveTimer

Subscriptions1
  • Fulwave Pro (Monthly)7 Days trial$0.991 Month
One-time1
  • Fulwave Pro (Lifetime)$29.99

Questions

Is Ferro AI free?
Ferro AI is free to download, with in-app purchases available.
Is FulwaveTimer free?
FulwaveTimer is free to download, with in-app purchases available.
Do Ferro AI or FulwaveTimer have ads?
Neither Ferro AI nor FulwaveTimer shows ads.
Which is updated more often, Ferro AI or FulwaveTimer?
Ferro AI ships an update every 3 months, and FulwaveTimer every 3 days. Most recently, Ferro AI was updated on October 5, 2026 and FulwaveTimer on October 3, 2026.

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