Helium
Helium: A free, open-source student planner with broad calendar and API support. Ranked #37 of 38 in Study Planner Apps by our editors (4.0/10); pricing: Free plan; best for students wanting a free, extensible planner.
At a glance
- Editor score4.0 / 10
- PricingFree plan
- Best forStudents wanting a free, extensible planner
- Free planYes
- Paid fromFree
- Assignment trackingYes
- Facts checked20 Sep 2026
Where it wins
- Tracks classes, assignments, grades, notes, exams, and reminders
- Works across web, iOS, and Android with calendar integrations
- Public REST API supports programmatic access and bulk imports
Where it doesn't
- Designed for academic planning rather than general project management
- Hypothetical grade calculations do not replace official grade records
- API-based customization may require technical knowledge
Our verdict on Helium
Helium is a free, open-source planner for students in middle school, high school, college, university, graduate school, and homeschool settings. It brings classes, recurring schedules, assignments, grades, notes, reminders, exams, and calendar views into one system. Students can manage assignment due dates, completion status, priorities, attachments, and reminders, while planner views cover the month, week, day, agenda, and todos. Access is available through the web, iOS, and Android, making it suitable for students who want one academic planning system across devices.
Its strongest angle is the combination of academic depth and calendar coverage. Class schedules support recurring and rotating meeting patterns, while external calendar subscriptions and outbound calendar feeds connect with Google Calendar, Apple Calendar, and iCal calendars. Push and email reminders can cover assignments, classes, exams, and events. Grade tracking includes hypothetical grade calculations, and rich notes can be linked to classes, assignments, and resources. These features make Helium more focused on the academic workflow than a basic calendar or task list.
Extensibility is another clear differentiator. The public REST API covers classes, assignments, grades, notes, and imports, giving technically capable students or developers a route to programmatic access and bulk data handling. That flexibility may be more than a student needs if they only want a simple schedule and checklist. Helium is a strong fit for students who want detailed academic organization, cross-device access, calendar connections, and an open-source foundation. Students seeking a general-purpose project manager or a minimal planner may prefer a narrower tool.
Your product? Our editors can test Helium in depth and publish a review, labelled as paid · from $149/mo →
Helium pricing
All 1 Helium plans and prices →
Helium fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Assignment tracking | Yes |
| Exam planning | Yes |
| Revision scheduling | Not verified |
| Recurring study sessions | Yes |
| Calendar sync | Yes |
| Available platforms | web, ios, android, api |
| Deployment | Cloud, Mobile |
| Platforms | Web, iOS, Android |
| Support | Tickets, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 4 integrations: Google Calendar, Apple Calendar, iCal calendars, REST API See all → |
| Pricing | Free plan (source) |
| Website | heliumedu.com |
| Facts checked | 20 Sep 2026 |
Helium integrations
Helium lists 4 integrations on its own site.
- Google Calendar
- Apple Calendar
- iCal calendars
- REST API
Alternatives to Helium
- Get RevisingA free web planner that combines revision schedules with broad exam-study resources.8.1
- AdaptA focused study planner pairing adaptive timetables with lessons, questions and feedback.7.9
- StudiPaceA low-cost adaptive exam planner for students who want guided scheduling.7.8
Also Ranked In
Helium is ranked in 2 of our directories.
Used Helium? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Helium for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
Helium is listed in our Study Planner Apps directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/helium/"><img src="https://www.itechguides.com/best/badge/helium.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update