Comparison

RAC Videos vs Guitar 3D

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

Head to head
About

RAC Videos

Features
Read full description

A series of short instructional videos on techniques, safety and best practice for refrigeration and air-conditioning technicians This application, consisting of short instructional videos on techniques, safety and best practice, serves as a complementary training tool for refrigeration and air-conditioning (RAC) sector servicing technicians to help them revise and retain the skills they have acquired during hands-on training. The videos are not intended to replace structured formal technician training, but to supplement and provide some revision of tips and skills and to build on training already undertaken. The application forms a part of UN Environment (UNEP) OzonAction’s portfolio of activities and tools to help enhance the knowledge and skills of technicians in the servicing and maintenance of refrigeration and air-conditioning systems. OzonAction provides assistance to various stakeholders in developing countries, including technicians, to achieve and maintain compliance with the Montreal Protocol on Substances the Deplete the Ozone Layer. The videos were produced in collaboration with Bundesfachschule Kälte Klima Technik.

About

Guitar 3D

Learn guitar chords, strumming, and fingerpicking with interactive 3D visualizations. Compose your own music using a simple editor and hear real guitar sounds. Ideal for visual learners wanting to play basic guitar quickly.

Highlights
  • 3D right and left hand viewer
  • Chord chain editor
  • Auto play & loop
  • Speed control
  • Chord training game
  • Left-handed guitarist support
  • Chord library
Features
Read full description

No Ads! Learn how to play basic guitar chords, strumming and fingerpicking simply with this 3D ultimate guitar learning app just in minutes. Specially Designed for visual learners! Fun and easy way to learn guitar chords or compose songs. Just select the chords you want to learn and add them to the timeline. The virtual guitarist in the application plays the chord sequences you have composed, with strumming or fingerpicking techniques. You can see the correct finger movements from all sides in vivid detail. With the simple and easy-to-use music editor, you can compose your own music just in minutes. Sounds are recorded from real guitars. All animations were made with worlds best academic musicians and education experts. Features of Guitar 3D - Basic Chords App: ▸ Very easy to use ▸ No Ads ▸ 3D right and left hand viewer ▸ Chord chain editor ▸ Auto play & loop ▸ Speed ​​control ▸ Save your songs ▸ First - person and split cam options ▸ Different strumming and fingerpicking techniques ▸ Chord training game with 25 levels ▸ Support for left-handed guitarists ▸ Chord library(2D diagram) including all chords If you want to follow us: https://www.instagram.com/guitar3d https://www.facebook.com/Guitar3D https://www.facebook.com/Polygonium https://www.polygonium.com/music

Screenshots

RAC Videos4 screens
Guitar 3D4 screens

Verdict

The call

The clearest difference is in-app purchases: RAC Videos at none against Guitar 3D's 7. RAC Videos also leads on iOS requirement (8.0 vs 15.0). On price, update cadence, ads 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. Guitar 3D sells 7 one-off in-app purchases. RAC Videos asks for nothing beyond the download.

UpkeepUpdate frequency

RAC Videos ships an update every 6 weeks, Guitar 3D every 2 months. The most recent releases landed on June 11, 2026 and September 11, 2026 respectively.

Scorecard2 real differences · 8 level
RAC Videos versus Guitar 3D: the parameters behind the verdict, then further details
ParameterRAC VideosGuitar 3D
PriceFreeFree
Rating—4.8 (736 ratings) — better
Positive reviews—98.9% of reviews
Number of ratings—736 — better
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple TV — better
Requires iOS8.0 — better15.0
Further details — not scored
Size22 MB145 MB
Age rating17+4+
DeveloperUnited Nations Environment ProgrammePolygonium

Bugs and requests

RAC Videos

Not enough reviews yet to summarise bugs or requests.

Guitar 3D

Reported bugs

2 issues
  • Login screen freezes
  • Incompatible with older devices

Requested features

7 requests
  • Include more advanced chords and chord progressions
  • Add interval display
  • Incorporate barred chords
  • Integrate with a DAW or guitar pro software
  • Provide a song library with popular songs
Show 2 more
  • Add Bluetooth connectivity
  • Improve song creation and saving functionality

In-app purchases

None

RAC Videos

No in-app purchases

7 purchases

Guitar 3D

One-time7
  • Classical Guitar$1.99
  • Acoustic Guitar$1.99
  • Classical Guitar$2.99
Show 4 more
  • Acoustic Guitar$2.99
  • Electro-Classical Guitar$2.99
  • Guitar Bundle$4.99
  • Guitar Bundle$7.99

Questions

Is RAC Videos free?
RAC Videos is free to download, with no in-app purchases.
Is Guitar 3D free?
Guitar 3D is free to download, with in-app purchases available.
Do RAC Videos or Guitar 3D have ads?
Neither RAC Videos nor Guitar 3D shows ads.
Which is updated more often, RAC Videos or Guitar 3D?
RAC Videos ships an update every 6 weeks, and Guitar 3D every 2 months. Most recently, RAC Videos was updated on June 11, 2026 and Guitar 3D on September 11, 2026.

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