Citizen Science vs Rongo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Citizen Science
Contribute to real scientific research by easily entering data for various surveys. Participate in projects like snow depth measurement or storm assessment, with your submissions visible on a dedicated website. This platform allows researchers to utilize the growing data set for further scientific endeavors.
- Participate in scientific research projects
- Easy data entry for surveys
- Submit snow depth and storm assessments
- View submissions on the website
- Data accessible via API
- Surveys can be restricted to user groups
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NIWA Citizen Science App Citizen science projects allow members of the public to work on important scientific research. NIWA’s new Citizen Science App makes this easier than ever by enabling simple data entry for science surveys. How does the App work? When a researcher creates a citizen science survey, it is immediately available, through the Citizen Science App. Users can choose from a variety of surveys. Some, such as snow depth or storm assessment, will come and go during the year - others will remain year-round. Once surveys are completed, users can see their submissions on the Citizen Science website. Other research groups – professional or amateur – can also use this data for other scientific projects. Surveys can be restricted to specific user groups if required. As the data set grows it will become a useful tool for scientists all over the country through NIWA’s comprehensive API. If you're interested in finding out more, please email citizenscience@niwa.co.nz.
Rongo
This app helps beginners practice speaking te reo Māori by focusing on pronunciation without the fear of judgment. It offers real-time feedback and guided practice through levels and phrases to build confidence and mastery of the language's sounds.
- Pronunciation practice
- Real-time feedback
- Guided learning levels
- Phrase repetition
- Confidence building
- Focus on sounds
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When you start learning te reo Māori, fear of mispronunciation can be one of the greatest barriers to you actually speaking it. Rongo gives you an opportunity to practice in a private space without the pressure and fear of being judged or annoying or offending people. Rongo is best for beginner speakers of te reo Māori as a tool to support their language learning journey. Intermediate and proficient speakers might still find it useful to see if they have formed any ‘bad habits’ along the way. In the houses of learning of long ago, students would sit in the darkness while the tohunga (expert) would recite lines of genealogy that spanned many generations. The students would learn by focussing on the words, retaining that knowledge and practice by reciting it themselves. Rongo aims to recreate this experience.By stripping away the written word, you must focus on the sounds of the language and work towards reproducing them, without being influenced by what you have read and, therefore, your existing bank of sound knowledge Like the whakatauākī of the late Te Wharehuia Milroy, a champion and master of te reo Māori, “Whakahokia te reo mai i te mata o te pene, ki te mata o te arero,' (Bring the language back from the tip of the pen to the tip of the tongue). To reach this goal of speaking te reo Māori, not reading or writing, Rongo can help overcome the barrier that fear of mispronunciation can create. This can be a difficult process or method, but with patience and mindfulness you will master the sounds while also growing your confidence. You will receive real-time feedback and be prompted to repeat and practice the words and phrases to improve your pronunciation. With over 230 phrases across 24 levels, you will master basic sounds and move to more complex sound combinations. We encourage you to find a quiet, comfortable space to practice. For example, lie down on the couch with the phone resting on your chest and close your eyes. Or find that quiet spot in your garden, anywhere you feel relaxed. With Rongo, you can just focus on yourself, your learning, your journey. Mā te rongo ka mōhio, mā te mōhio ka mārama, mā te mārama ka mātau, mā te mātau ka ora! Through listening comes awareness; through awareness comes understanding; through understanding comes knowledge; through knowledge comes life and well being. If you are an organisation that is interested in a customised experience and an app that uses words and phrases that are tailored to your industry, please feel free to contact us: awhina@rongo.app
Screenshots
Verdict
The clearest difference is review sentiment: Rongo at 75% against Citizen Science's 0%. On price, update cadence, ads and in-app purchases 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.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.
| Parameter | Citizen Science | Rongo |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 75.0% of reviews — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 33 MB | 90 MB |
| Age rating | 4+ | 4+ |
| Developer | NEW ZEALAND INSTITUTE FOR EARTH SCIENCE LIMITED | Te Reo Irirangi o Te Hiku o Te Ika |
Customer experience
Citizen Science
Rongo
In-app purchases
Citizen Science
No in-app purchases
Rongo
No in-app purchases









