Estimatis vs Simple_Day
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Estimatis
This app allows users to create project estimates by defining tasks, effort, and parallel work. It visualizes results in a Gantt chart and can export data. It also incorporates risk assessment for more accurate duration calculations.
- Task definition with effort estimation
- Parallel work identification
- Gantt chart visualization
- Data export to clipboard
- Internal risk percentage setting
- Offline functionality
- On-device computation for privacy
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Create high-level estimates for your new projects even when you are away: define a set of tasks (envisioned, for example, by analyzing a request received from a customer), specify their estimated effort values, identify and mark the work items that may be parallelized to the ones above, optionally set up your hour rate amount, and you're done: view immediate results in the Gantt chart tab. You can also use the Copy values command from the context menu of the estimation values section to copy them as tab separated values directly to clipboard (and from there to your desired destination app, such as for backup purposes or simply to reply to your customer, providing the project duration and cost estimation that they have asked for.) Optionally, you can also set an internal risk percent besides the tasks themselves (for example, if you think that you may run into unexpected delays while performing the necessary work during the project): this will decrease the resource allocation units used upon task scheduling and therefore it would enlarge the estimated duration accordingly, without increasing the billable hour count or the total cost of the project. Note that everything is computed directly on your device to maximize privacy, and to run offline whenever needed too.
Simple_Day
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Simple_Day gives you the simplest and most user-friendly planning on the market. We'll have up and running in a matter of minutes - eliminating time-consuming training, complex requirements specifications, and redundant industry modules. Simple_Day is flexible and definitions of resources and activities can be infinitely varied, allowing any type of business to meet its individual planning needs. Quick planning of tasks on employees and other resources of the company. Visual overview of “who, what, where and when”. Simple_Day can be integrated directly with your calendar. It is also possible to integrate with your existing systems, so reservations can appear directly in Simple_Day.
Screenshots
Verdict
The clearest difference is price: Simple_Day at Free against Estimatis's $3.99. Simple_Day also leads on update cadence (every 5 days vs every 7 months). Estimatis's advantage is iOS requirement (13.0 vs 15.1). On ads, in-app purchases 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
Simple_Day is free to download; Estimatis costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Estimatis ships an update every 7 months, Simple_Day every 5 days. The most recent releases landed on June 4, 2026 and August 30, 2026 respectively.
| Parameter | Estimatis | Simple_Day |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 7 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 2 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | DlhSoft SRL | Bean ApS |
In-app purchases
Estimatis
No in-app purchases
Simple_Day
No in-app purchases









