Comparison

the5ource vs OPUS

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

Head to head

the5ource

Go, enchant the world!

About

the5ource

Features

Read full description

the5ource empowers you to anchor your unique creations in a physical location. Take a picture, draw, write, make a song, share some thoughts... your creativity is the limit! Your creation is then called a "5eed". This 5eed is unique and can be read only at that specific location, nowhere else. So, how will you re-enchant the world today?

About

OPUS

Features

Read full description

Join the app OPUS – La Défense and enjoy many services directly from your mobile. Opus12 is a simple, practical & secure application to stay informed and communicate within a building. The application allows you to : - follow what's happening at Opus12 in real-time, with your building's news - to chat with other building's occupants via messenger or a forum - benefit from services to simplify your daily life: concierge services, reservation of common areas or goods and all other third-party services integrated into the app.

Screenshots

the5ource4 screens

OPUS4 screens

Verdict

The call

The clearest difference is ads: the5ource at none against OPUS's shown. OPUS's advantage is update cadence (every 3 weeks vs every 3 months). On price, in-app purchases, device support and iOS requirement 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

the5ource ships an update every 3 months, OPUS every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 4 level

the5ource versus OPUS: the parameters behind the verdict, then further details
Parameter	the5ource	OPUS
Price	Free	Free
Update frequency	Every 3 months	Every 3 weeks — better
Ads	No — better	Yes
In-app purchases	No	No
Devices	iPhone, iPod — better	iPhone
Requires iOS	15.1 — better	16.0
Further details — not scored
Size	89 MB	68 MB
Age rating	4+	4+
Developer	the5ource	MonBuilding&Co

In-app purchases

None

the5ource

No in-app purchases

None

OPUS

No in-app purchases

Questions

Is the5ource free?

the5ource is free to download, with no in-app purchases.

Is OPUS free?

OPUS is free to download, with no in-app purchases.

Do the5ource or OPUS have ads?

OPUS shows ads; the5ource does not.

Which is updated more often, the5ource or OPUS?

the5ource ships an update every 3 months, and OPUS every 3 weeks. Most recently, the5ource was updated on October 25, 2026 and OPUS on October 24, 2026.