LSDF e vs IODA Optimist
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LSDF e
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ID card for identification of members of the Latvian Dance Sports Federation. The app provides limited information about the member. Also provides information about sports licenses and points earned. Also, show the history of sports competitions in which the members participated.
IODA Optimist
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Official mobile application of the IODA (International Optimist Dinghy Association) Championships. Live information on all races; constant results updates; daily news, images and videos of the regatta are some of the examples offered by this App to enable you to track down to the minute everything that is going on during every Optimist class major championship. Furthermore, if you wish so, you can receive alerts of any relevant information from any of the races or teams you wish to follow closely. With this App, live the major IODA Major Championships wherever you may be as you had never imagined! 3392
Screenshots
Verdict
LSDF e and IODA Optimist are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
LSDF e ships an update monthly, IODA Optimist every 2 months. The most recent releases landed on September 15, 2026 and September 18, 2026 respectively.
| Parameter | LSDF e | IODA Optimist |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Sergejs Litvinovskis | Sailti |
In-app purchases
LSDF e
No in-app purchases
IODA Optimist
No in-app purchases
Questions
Is LSDF e free?
Is IODA Optimist free?
Do LSDF e or IODA Optimist have ads?
Which is updated more often, LSDF e or IODA Optimist?
Other comparisons
