Spark vs M19 Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spark
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Take Note, Organize Thoughts. Introduce Spark by Good Effect that hundred thousands of download record by E-book authoring tool Book Writer, Fairy Tale. Do you want to write what you think right a way? You can note your thoughts fast by using Spark. Spark provides simple interface : item, page. You can insert item by tapping item button and create new page by tapping plus button. Very easy. Also Spark provide widget. You can launch spark through today widget so it would be easy and fast. Share your page image that created yourself. Please visit http://goodeffect.com for more information. Or contact to jameslee@goodeffect.com. Icon made by Freepik from www.flaticon.com
M19 Lab
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The M19 labs vision is to continue to grow and challenge convention through our pioneering spirit, scientific advancements, forward-thinking leadership, and collaborative approach to providing exceptional material testing support in the many diverse industries that we serve.
Screenshots
Verdict
The clearest difference is update cadence: Spark at every 3 days against M19 Lab's monthly. Spark also leads on iOS requirement (8.0 vs 14.5). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Spark ships an update every 3 days, M19 Lab monthly. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.
| Parameter | Spark | M19 Lab |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 14.5 |
| Further details — not scored | ||
| Size | 52 MB | 71 MB |
| Age rating | 4+ | 17+ |
| Developer | Good Effect | Patel Meet |
In-app purchases
Spark
No in-app purchases
M19 Lab
No in-app purchases
