Comparison

CorPatch vs Alissa

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

Head to head
About

CorPatch

Features
Read full description

Cardiac arrest is one of the leading causes of death. Survival chances drop by 10% per minute when a person suffers from cardiac arrest, primarily due to lack of oxygenation of the brain. But if you provide high-quality CPR, the chance of survival increases considerably. With your CorPatch® and the CorPatch® app at hand, we address your insecurities, and prepare and guide you to recognize a cardiac arrest and perform high-quality CPR. You, CorPatch®, and the CorPatch® app together will increase the chances for the person to survive the cardiac arrest. It is a very stressful situation to witness the collapse of a spouse, family member, colleague, friend, or neighbour. This app in combination with CorPatch® will support you, to: 1. Recognize a cardiac arrest 2. Call 1-1-2 3. Give high-quality CPR, because of our unique feedback system that measures actual compressions and coaches you with real-time instructions 4. Train CPR in the comfort of your home every three months, evaluate your performance in training, and be fully prepared to act in the event of cardiac arrest Chest compression quality correlates with the survival chances, and CorPatch® (available through various channels) measures frequency, depth and recoil of each compression and guides you to get the best possible quality. This ensures optimum survival chances. If you feel confident to give rescue breaths, the app will instruct you on this also, but if not, simply use it just for chest compressions, which will ensure blood flow and oxygenation of the person’s brain for the first crucial minutes. The app can be used by any person strong enough to perform CPR, and on adults who have suffered a cardiac arrest. And you can supplement your first aid or CPR courses with regular short training intervals in your home, office, or club if you have a CorPatch®. If you have a person in your family, colleague, or near relations with cardiovascular diseases or signs of it, they can be at high risk of cardiac arrest. The best thing you can do is to be prepared by having your CorPatch® app and a CorPatch® at hand, should the worst happen. Together, the CorPatch® App and the CorPatch® device is a medical device in Class 1 according to the European Medical Device Regulation. It is manufactured and provided by the Danish health-tech company SmartResQ. Disclaimer! CorPatch® is a product for lay rescuers in emergency situations, helping you provide CPR. In the case of a real cardiac arrest when you use the CorPatch® app, you will be guided to call the emergency services. If you have any doubts about whether the indications for use for cardiac arrest are present, make sure to seek advice from the Medical Professionals in the Emergency Medical Services, before making any medical decisions.

About

Alissa

Features
Read full description

A simple diary for pregnancy and the first months with your baby. Built for hands that are currently holding a child: big buttons, short paths, nothing you have to learn first. ONE TAP IS ENOUGH • Breastfeeding left and right, bottle, diaper, poop • Sleeping, waking, fussiness, gas, bath time • Right afterwards “Undo” appears – in case you tapped by mistake A TIMER, IF YOU WANT ONE Time a feed and switch to the other breast with a single tap. The first side is saved, the second starts straight away. Entirely optional – you can also enter the duration by hand. YOUR OWN CARDS Vitamin D, walk, weigh-in: choose the title, icon and colour yourself, and decide what you are asked when you tap. The card then shows up normally in the diary, the statistics and the PDF. FROM BEFORE THE BIRTH Week of pregnancy and countdown to the due date, baby movements, contractions with a timer, weight, how you feel and any symptoms. Appointments and documents such as lab results are filed right next to them. Once the baby arrives, one button switches to the baby diary – every entry is kept. SEVERAL CHILDREN Switch between profiles at the top. Each child and each pregnancy has its own diary, and the overview shows them side by side: next feed, last fed, last poop. STATISTICS THAT REASSURE Choose the period: today, 12 hours, 24 hours or 7 days. With the average gap between feeds, hours of sleep, age comparison and growth curves – and a clear reminder that these are rough averages and every child is different. FOR YOUR MIDWIFE AND PAEDIATRICIAN A PDF with every event sorted by day, to print or send directly. You choose where it is saved first, so there is no hunting for it afterwards. YOUR DATA STAYS WITH YOU Everything is stored locally on your device only. No cloud, no account, no advertising, no tracking. The app works completely offline. A file only leaves your phone if you export it yourself. LANGUAGES English, German, French, Italian and Spanish. The app picks up your phone’s language and can be changed at any time. PLEASE NOTE Alissa is a private diary and not a medical device. It makes no diagnoses and gives no medical recommendations. If you have questions or concerns about your child’s health, please contact your midwife or your paediatrician.

Screenshots

CorPatch4 screens
Alissa4 screens

Verdict

The call

The clearest difference is update cadence: Alissa at fortnightly against CorPatch's every 4 months. CorPatch's advantage is iOS requirement (14.0 vs 16.4). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CorPatch ships an update every 4 months, Alissa fortnightly. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 4 level
CorPatch versus Alissa: the parameters behind the verdict, then further details
ParameterCorPatchAlissa
PriceFreeFree
Update frequencyEvery 4 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.0 — better16.4
Further details — not scored
Size53 MB30 MB
Age rating12+4+
DeveloperSmartResQ GmbHSimon Hofmann

In-app purchases

None

CorPatch

No in-app purchases

None

Alissa

No in-app purchases

Questions

Is CorPatch free?
CorPatch is free to download, with no in-app purchases.
Is Alissa free?
Alissa is free to download, with no in-app purchases.
Do CorPatch or Alissa have ads?
Neither CorPatch nor Alissa shows ads.
Which is updated more often, CorPatch or Alissa?
CorPatch ships an update every 4 months, and Alissa fortnightly. Most recently, CorPatch was updated on October 18, 2026 and Alissa on October 25, 2026.

Other comparisons