Comparison

ALFIE first words vs ViGravitatis

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

Head to head
About

ALFIE first words

Features
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About this app Educational app based on the books from DTP Education Solutions. Fun learning Learning is joyful with ALFIE first words. Our app includes hundreds of educational activities and engaging games so it offers students the best learning experience as they have a good time. Four skills in one app Our Units are divided into entertaining activities which help students easily practice four skills. Each activity teaches core vocabulary and structures in contexts to improve learning and memory. Speaking like a native Our speech recognition technology improves students’ pronunciation. • Engage students in real – life conversation, which grows students’ speaking abilities • Keep students motivated with interesting role – play games. Learning tailored to students’ levels Personalized learning allows each child to review at their own level. PARENTS and TEACHERS’ CORNER Easily assigning activities to students. With one click, teachers can assign appropriate activities to all students at the same time. Progress reports Parents and teachers can track their children’s learning progress with our reports at any time.

About

ViGravitatis

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The physics is fun! The law of gravity in particular. Explore it with ViGravitatis today and understand the trajectory of celestials tomorrow! Guide: Modes ViGravitatis provides two key modes: Creation and Simulation. In the Creation Mode, you have the full power to place anything in your space and anywhere. When you press Play, Simulation mode starts automatically. In this mode, you are limited to changing a few parameters of a selected celestial. Moreover, different capabilities are available when simulation is playing compared to when it is paused. Use the toggle with the hammer icon to switch between Creation and Simulation. Note that when you switch from Simulation to Creation, the space is reset to its initial state. Meaning that the positions and velocities of celestials are reset. The key scenario of using the app is to set up your scene in the Creation Mode and then check how it is changing during the simulation. Then, go back to Creation Mode, change a few initial parameters, and check again how it affects the simulation. Guide: Simulation Speed There are a few ways you can affect the speed of the simulation. First of all, it can be completely paused at any time. So, no objects are moving. But you can also change the accuracy of the simulation using the slider near the Play/Pause toggle. It can increase the speed of the simulation, sacrificing accuracy. So, at very high speeds, objects can start moving in a very surprising way, albeit inaccurately. On the other hand, you can change the “iterations count”. With greater iterations in total simulation runs, faster without any degradation in accuracy, but it will require more battery power of your device.

Screenshots

ALFIE first words4 screens
ViGravitatis3 screens

Verdict

The call

The clearest difference is update cadence: ALFIE first words at monthly against ViGravitatis's every 47 months. ALFIE first words also leads on iOS requirement (9.0 vs 14.2). 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

ALFIE first words ships an update monthly, ViGravitatis every 47 months. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 4 level
ALFIE first words versus ViGravitatis: the parameters behind the verdict, then further details
ParameterALFIE first wordsViGravitatis
PriceFreeFree
Update frequencyMonthly — betterEvery 47 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better14.2
Further details — not scored
Size427 MB34 MB
Age rating4+4+
DeveloperEducation Software VietNamArtyom Rudakov

In-app purchases

None

ALFIE first words

No in-app purchases

None

ViGravitatis

No in-app purchases

Questions

Is ALFIE first words free?
ALFIE first words is free to download, with no in-app purchases.
Is ViGravitatis free?
ViGravitatis is free to download, with no in-app purchases.
Do ALFIE first words or ViGravitatis have ads?
Neither ALFIE first words nor ViGravitatis shows ads.
Which is updated more often, ALFIE first words or ViGravitatis?
ALFIE first words ships an update monthly, and ViGravitatis every 47 months. Most recently, ALFIE first words was updated on October 16, 2026 and ViGravitatis on October 11, 2026.

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