Quick Answer: Audien is the cheaper of the two at every tier, from the $99/pair Atom 2 up to the $389/pair Atom X, and its whole lineup is deliberately app-free and in-canal. MDHearing costs more — about $297 to $597/pair — but its VOLT 4 and VOLT MAX 2 are behind-the-ear models with a stronger receiver, and the VOLT MAX 2 adds smartphone app control that no Audien model offers. Pick Audien for the lowest possible entry price and maximum discretion; pick MDHearing if you need more amplification than a small in-canal device can deliver, or want app-based self-tuning.
Both MDHearing and Audien built their entire business on the same idea: an FDA-registered OTC hearing aid doesn’t have to cost anywhere near the roughly $3,000 average out-of-pocket price of a prescription pair, a figure the President’s Council of Advisors on Science and Technology has reported for years. According to the NIDCD (National Institute on Deafness and Other Communication Disorders), about 28.8 million U.S. adults could benefit from hearing aids, and both brands are chasing the same price-sensitive buyer who’s been priced out of the clinic route. The difference is in how far down each brand pushes the price, and what gets cut to get there.
MDHearing vs Audien by the numbers
- $99 vs $297 — Audien’s cheapest model (Atom 2) undercuts MDHearing’s cheapest model (AIR) by close to $200 a pair.
- $389 vs $597 — even at the top of each lineup, Audien’s most advanced model (Atom X) stays nearly $200 cheaper than MDHearing’s flagship VOLT MAX 2.
- 1 app vs 0 apps — MDHearing’s VOLT MAX 2 and NEO XS PRO connect to a smartphone app for self-tuning; no current Audien model has any app at all.
- ~20 hours — MDHearing’s rated battery life for the VOLT MAX 2 and VOLT 4 from a 2-hour charge, the highest single published number between the two brands.
- 0 — Bluetooth-streaming models in either brand’s current lineup. Neither MDHearing nor Audien streams phone calls or music; both are amplify-only devices.
MDHearing vs Audien at a glance
| Feature | MDHearing (AIR–VOLT MAX 2) | Audien (Atom 2–Atom X) |
|---|---|---|
| Style | In-canal (NEO) & behind-the-ear (VOLT 4, VOLT MAX 2) | In-canal only, all models |
| Best for | Stronger amplification, app self-tuning | Lowest possible price, maximum discretion |
| App control | Yes — VOLT MAX 2 & NEO XS PRO only | No — entire lineup is app-free |
| Price (pair) | $297–$597 | $99–$389 |
| Bluetooth audio streaming | No | No |
| Battery life | ~18–20 hrs (per charge) | Rechargeable case; varies by model |
| Trial period | 45-day risk-free (direct) | Varies by promotion (direct) |
MDHearing: best for stronger amplification and app control
MDHearing VOLT MAX 2
- Behind-the-ear design with a stronger receiver than any in-canal-only competitor, better suited to moderate hearing loss.
- Connects to the MDHearing smartphone app for self-tuning adjustments — a feature no current Audien model offers.
- Rated about 20 hours of battery life from a 2-hour charge, per MDHearing.
- 45-day risk-free trial and lifetime US-based support when you buy direct.
Since a hearing aid trial only really proves itself once you’re wearing the device through a full week of normal life, it’s worth having Amazon Prime free for 30 days lined up so a backup charger, replacement domes, or a cleaning kit can arrive in two days if either brand’s trial period runs long.
MDHearing’s real edge is amplification strength: the VOLT 4 and VOLT MAX 2 are behind-the-ear models, which simply have more room for a stronger receiver than any in-canal device can fit. Add the VOLT MAX 2’s app-based self-tuning — something Audien doesn’t offer on any model — and MDHearing is the better pick for anyone whose hearing loss sits at the higher end of “mild-to-moderate.” See our full MDHearing hearing aids review for how the AIR, NEO, VOLT 4, and VOLT MAX 2 compare.
Audien: best for lowest price and maximum discretion
Audien Atom 2
- The cheapest model between the two brands by a wide margin — about $200 less than MDHearing's cheapest model.
- Near-invisible in-canal fit, rechargeable, with a simple manual volume dial.
- Entire lineup (Atom 2, Atom Air, Atom Pro 2, Atom X) stays app-free, which keeps the learning curve minimal for less tech-comfortable buyers.
- The newer Atom X (~$389) swaps the dial for a touchscreen on its charging case, still with no app or phone connection required.
Audien’s case is simpler to make: it’s cheaper at every price point, it fits more discreetly in the ear, and it doesn’t ask buyers to learn an app to get started. The tradeoff is amplification headroom — a small in-canal shell can’t fit as strong a receiver as MDHearing’s behind-the-ear models — so Audien suits buyers whose hearing loss is genuinely mild rather than pushing toward moderate. See our full Audien hearing aids review for how the Atom 2, Atom Air, Atom Pro 2, and Atom X compare.
Which should you buy?
- Buy MDHearing if you need more amplification than a small in-canal device can deliver, or you want app-based self-tuning on the VOLT MAX 2.
- Buy Audien if price and discretion matter most — it’s cheaper than MDHearing at every tier and fits more invisibly in the ear.
- Buy neither if you have severe, sudden, or single-sided hearing loss, or tinnitus that’s pulsing or one-sided. Those are signs to see a licensed audiologist for prescription hearing aids rather than buying over the counter — start with our severe hearing loss guide.
The bottom line
For 2026, Audien is the lower-friction, lower-cost buy for anyone with genuinely mild hearing loss who wants the smallest possible device and the smallest possible price tag, while MDHearing is the better pick once you need a stronger behind-the-ear receiver or want app-based self-tuning. Both are genuine FDA-registered OTC hearing aids for adults with perceived mild-to-moderate hearing loss. Still comparing the wider field? See our best cheap hearing aids roundup, our MDHearing and Audien full reviews, or our Audicus vs Jabra comparison for how two higher-priced brands stack up against each other.