The perfect Egg timer vs Sous Chef
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The perfect Egg timer
Achieve perfectly cooked eggs every time with this intelligent timer. It calculates precise cooking times based on egg size, altitude, and temperature, and even features an "egg spy" to visualize internal changes.
- Precise cooking time calculation
- Egg size measurement via iPhone scale
- Altitude determination (manual or GPS)
- Egg temperature setting (freezer/room temp)
- Egg-spy visualization of internal changes
- Adjustable doneness levels (soft to hard)
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************************************* - #1 Bestseller category "Lifestyle" (Germany) - #1 Bestseller category "Lifestyle" (Austria) - #1 Bestseller category "Lifestyle" (Switzerland) - #1 Bestseller category "Lifestyle (Sweden) - #1 Bestseller category "Lifestyle" (Netherlands) - Selected as App Store "Staff Favorite" in USA, UK, Austria and Switzerland. - Mentioned in german newsmagazine DER SPIEGEL (45/2009) and manager-magazine. ************************************* The perfect egg timer with the incredible egg spy: from now on your eggs will be perfect. Are you tired of eggs that are always too soft or to hard? No matter where you are or how big your egg is - the perfect egg timer for perfect eggs is the solution! The perfect egg-timer is based on scientific proof and because every egg is different, the timer calculates the exact cooking time based on egg size, altitude and temperature. Usage: In order to measure the exact size of your egg, simply place it on your iPhone and set the size using your fingertip for. Determine your current altitude (or let it be determined by GPS), tell your iPhone if you kept your eggs in the freezer or at room temperature and how you would like to have your eggs – soft-boiled, hard-boiled or something in-between. Place your eggs in a single layer in a saucepan. Add enough cold water to just cover the eggs. Bring them to a rapid boil over high heat and start the countdown. The iPhone will signal when the eggs are done. The attraction: The egg spy lets you see the changes inside your boiling egg! Features: -the formula for the perfect egg-timer is based on physical experiments and studies - Egg-size can be adjusted to the nearest millimetre (inch): Simply place the egg on the iPhone scale and set the size with your fingertip. It doesn’t get any more accurate than this. - Automatic change of measurement units between inch or millimeter and fahrenheit or celsisu, depending on language and international settings. - determine and enter your altitude manually or let it be determined by GPS automatically. - The egg-spy shows you the inside of your egg during the cooking progress
Sous Chef
This kitchen helper offers a suite of tools for meal preparation, including multiple configurable timers that function even when the app is closed. It also features a servings calculator and a handy conversion chart to simplify cooking tasks.
- 5 configurable timers
- Timers work in background
- Servings calculator
- Popular conversions chart
- Stores notes and favorite websites
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Kitchen Sous Chef is a set of everyday tools to assist you around the kitchen. This little kitchen helper is ready and waiting to help you serve up that delicious meal! *Note* Timers use the device notification system. Make sure notifications are turned on and that your device volume/ringer is not muted!! App Highlights • 5 Configurable timers. • Timers work even if app is not running. • Servings calculator • Chart of popular conversions. • Stores notes and favorite websites. • Available for both iPhone and iPad.
Screenshots
Verdict
The clearest difference is in-app purchases: The perfect Egg timer at none against Sous Chef's 4. The perfect Egg timer also leads on ads (none vs shown). Sous Chef's advantage is review sentiment (90% vs 63%) and ratings volume (338 vs 6). 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
Both are free to download. Sous Chef sells 4 one-off in-app purchases. The perfect Egg timer asks for nothing beyond the download.
Sous Chef holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Sous Chef has 338 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 63% of The perfect Egg timer's written reviews are positive against 90% of Sous Chef's.
The perfect Egg timer ships an update every 9 months, Sous Chef every 3 months. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.
| Parameter | The perfect Egg timer | Sous Chef |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (6 ratings) | 4.5 (338 ratings) — better |
| Positive reviews | 63.3% of reviews | 90.0% of reviews — better |
| Number of ratings | 6 | 338 — better |
| Update frequency | Every 9 months | Every 3 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Mirko Müller | ChuChu Train Productions |
Customer experience
The perfect Egg timer
Sous Chef
User reviews
The perfect Egg timer
From 6 App Store ratingsWhat we love
- ✅ Produces perfect eggs when instructions followed correctly
- 🎯 Precise timing accounts for egg size and temperature
- 🌍 Altitude adjustment for accurate boiling point
- 📏 Innovative egg measurement tool using phone screen
- 🎨 Clean and intuitive user interface
Room to improve
- 🐛 Timing calculations frequently produce overcooked eggs
- 📱 App doesn't run in background (older iOS versions)
- 📐 Egg measurement scale issues on newer iPhone models
- 🔔 No notifications when timer completes if phone locked
- 📺 Poor scaling on newer iPhone screen sizes
Sous Chef
From 338 App Store ratingsWhat we love
- ⏱️ Multiple simultaneous timers (5 timers)
- 🏷️ Ability to label each timer
- 📱 Portable and convenient to use
- 🔊 Loud and audible alerts
- 📊 Useful conversion charts included
Room to improve
- 📢 Inconsistent alert volume levels
- 🔔 Alert only rings briefly then shows notification
- 📵 Doesn't ring when phone is locked
- 📺 No landscape mode support
- 🎵 Limited and repetitive alarm sounds
Bugs and requests
The perfect Egg timer
Reported bugs
9 issues- Egg measurement scale misaligned on iPhone 15 and newer models
- Timer stops when phone is locked or app backgrounded
- Timer slows down when multitasking between apps
- Back button resets running timer unexpectedly
- GPS altitude detection extremely slow
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- No iPad auto-rotation support
- Boiling water and cold water instructions reversed in some versions
- App doesn't work reliably with electric cookers
- Timer and alarm continuously sound during countdown
Requested features
10 requests- Multi-tasking support for background timer operation
- Altitude slider range increased to 4000m+ for high-altitude cities
- Option to add eggs to already-boiling water
- Multiple egg cooking adjustments
- Better app scaling for modern iPhone displays
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- Additional egg cooking tips and guidance
- Clarification on liquid vs soft egg definitions
- iPad portrait mode support
- Notifications that work when phone is locked
- Electric cooker-specific settings
Sous Chef
Reported bugs
5 issues- App crashes frequently during use
- Timer doesn't alert when phone is in lock mode
- Accidental timer reset when phone placed in pocket
- Pop-up ads appear during timer setup
- Free version upgrade doesn't convert to Pro (requires repurchase)
Requested features
13 requests- Custom alarm sounds for each timer
- Different ringtones/tones for different timers
- Count-up feature after timer reaches zero
- Larger readout/display text
- Cooking temperature reference charts
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- More than 5 timers available
- Gram conversion option
- Landscape mode support
- Volume control for alerts
- Number of alert repetitions option
- Menu planning features
- Additional sous chef functionality
- Ability to select iPhone system ringtones
In-app purchases
The perfect Egg timer
No in-app purchases
Sous Chef
- KS - Remove Ad Banner$9.99
- Unlimited Reference Entries$9.99
- Enable All Timers$9.99
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- All Features$24.99
Questions
Is The perfect Egg timer free?
Is Sous Chef free?
Which has better reviews, The perfect Egg timer or Sous Chef?
Do The perfect Egg timer or Sous Chef have ads?
Which is updated more often, The perfect Egg timer or Sous Chef?
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