Comparison

SOS vs CU 25

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

Head to head
About

SOS

Features
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The SOS-HGIC app enables parents, students, teachers and administrators to quickly access the resources, tools, news and information to stay connected and informed! The SOS-HGIC app features: - Important news from your school - Interactive resources including event calendars and more - Quick access to online resources

About

CU 25

Features
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CU 25 is the official companion app for Constructor University Bremen's 25th anniversary year. Eight events, six months, one celebration โ€” and one place to find the story, the day, the map, and a way in. TODAY โ€” A live countdown to Main Day (19 September 2026), what's happening now, campus announcements, and save-the-dates for the anniversary year. MAP โ€” The Open Campus map with eleven numbered zones, from the welcome hub to the fireworks on Campus Green. Filter by food, family, tours, stages, and accessibility. AGENDA โ€” The full anniversary year at a glance and Main Day hour by hour. Save events to your plan. STORIES โ€” Three pillars of the anniversary: Origins and Courage, Global Impact, The Next 25 Years. Chapters of campus history โ€” from the 1930s barracks and the post-war camps to Germany's first private, international, residential research university โ€” plus 25 Stories in 25 Weeks. MARATHON โ€” 25 CU runners at the Bremen Marathon. Meet the runners and pledge per kilometre for the 25-for-25 Legacy Scholarship. Fully bilingual โ€” switch between English and German anytime. Optional email updates on news and events. No account required โ€” step in as a guest. "What remains is change."

Screenshots

SOS3 screens
CU 254 screens

Verdict

The call

The clearest difference is update cadence: CU 25 at every 2 weeks against SOS's monthly. SOS's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SOS ships an update monthly, CU 25 every 2 weeks. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.

Scorecard2 real differences ยท 4 level
SOS versus CU 25: the parameters behind the verdict, then further details
ParameterSOSCU 25
PriceFreeFree
Update frequencyMonthlyEvery 2 weeks โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 โ€” better15.0
Further details โ€” not scored
Size83 MB18 MB
Age rating4+4+
DeveloperSOS - HERMANN GMEINER INTERNATIONAL COLLEGE LBGAhmet Aydin

In-app purchases

None

SOS

No in-app purchases

None

CU 25

No in-app purchases

Questions

Is SOS free?
SOS is free to download, with no in-app purchases.
Is CU 25 free?
CU 25 is free to download, with no in-app purchases.
Do SOS or CU 25 have ads?
Neither SOS nor CU 25 shows ads.
Which is updated more often, SOS or CU 25?
SOS ships an update monthly, and CU 25 every 2 weeks. Most recently, SOS was updated on October 16, 2026 and CU 25 on October 20, 2026.

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