Comparison

SDFVidya vs Colossus Social Reader

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

Head to head
About

SDFVidya

Features
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SDF Vidya is SDF organisation's philanthropic initiative, to better the lives of needy and focusing on uplifting the quality of life by providing the scholarships for the meritorious students from economically challenged families.

About

Colossus Social Reader

Features
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Read Mastodon in your language. Free, ad-free, with on-device translation. An independent Mastodon reader that lets you read and reply to posts in other languages using manual or automatic translation powered by Apple Translation. Access your Home, Lists, Bookmarks, and Notifications timelines with fast updates, complete threads, and a new-post counter that preserves your position. Translation is native, processed on-device, and does not send text to external translation services. With Slow Mode, translation is prepared in the background and displayed when you tap the translation button. Customize your experience with Liquid Glass, Light, Dark, and Soft themes, plus a configurable accent color. Also included: • Navigable mentions and profiles, with a Follow button. • Native video and GIF player. • Image viewer with zoom and direct saving to Photos. • Selectable text. • Built-in or external browser. • Spanish and English localization. This is an independent, unofficial Mastodon client. Account creation is not supported. To use the app, sign in with an existing Mastodon account created at: https://joinmastodon.org End User License Agreement (EULA): https://juliocuesta.github.io/LectorDeMastodon/en/terms-of-service.html Privacy Policy: https://juliocuesta.github.io/LectorDeMastodon/en/privacy-policy.html

Screenshots

SDFVidya4 screens
Colossus Social Reader4 screens

Verdict

The call

The clearest difference is update cadence: Colossus Social Reader at every 9 days against SDFVidya's every 2 months. SDFVidya's advantage is iOS requirement (13.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

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

UpkeepUpdate frequency

SDFVidya ships an update every 2 months, Colossus Social Reader every 9 days. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

Scorecard2 real differences Ā· 4 level
SDFVidya versus Colossus Social Reader: the parameters behind the verdict, then further details
ParameterSDFVidyaColossus Social Reader
PriceFreeFree
Update frequencyEvery 2 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better26.0
Further details — not scored
Size12 MB129 MB
Age rating4+4+
DeveloperINNOVATIONS INVESTMENT MANAGEMENT INDIA PRIVATE LIMITEDJulio Cuesta

In-app purchases

None

SDFVidya

No in-app purchases

None

Colossus Social Reader

No in-app purchases

Questions

Is SDFVidya free?
SDFVidya is free to download, with no in-app purchases.
Is Colossus Social Reader free?
Colossus Social Reader is free to download, with no in-app purchases.
Do SDFVidya or Colossus Social Reader have ads?
Neither SDFVidya nor Colossus Social Reader shows ads.
Which is updated more often, SDFVidya or Colossus Social Reader?
SDFVidya ships an update every 2 months, and Colossus Social Reader every 9 days. Most recently, SDFVidya was updated on October 12, 2026 and Colossus Social Reader on October 14, 2026.

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